--- a/src/testdir/test_matchfuzzy.vim
+++ b/src/testdir/test_matchfuzzy.vim
@@ -22,16 +22,15 @@ func Test_matchfuzzy()
   call assert_equal(['aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'], matchfuzzy(['aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'], 'aa'))
   call assert_equal(256, matchfuzzy([repeat('a', 256)], repeat('a', 256))[0]->len())
   call assert_equal([], matchfuzzy([repeat('a', 300)], repeat('a', 257)))
+  " matches with same score should not be reordered
+  let l = ['abc1', 'abc2', 'abc3']
+  call assert_equal(l, l->matchfuzzy('abc'))
 
   " Tests for match preferences
   " preference for camel case match
   call assert_equal(['oneTwo', 'onetwo'], ['onetwo', 'oneTwo']->matchfuzzy('onetwo'))
   " preference for match after a separator (_ or space)
-  if has("win32")
-    call assert_equal(['onetwo', 'one two', 'one_two'], ['onetwo', 'one_two', 'one two']->matchfuzzy('onetwo'))
-  else
-    call assert_equal(['onetwo', 'one_two', 'one two'], ['onetwo', 'one_two', 'one two']->matchfuzzy('onetwo'))
-  endif
+  call assert_equal(['onetwo', 'one_two', 'one two'], ['onetwo', 'one_two', 'one two']->matchfuzzy('onetwo'))
   " preference for leading letter match
   call assert_equal(['onetwo', 'xonetwo'], ['xonetwo', 'onetwo']->matchfuzzy('onetwo'))
   " preference for sequential match
@@ -42,6 +41,17 @@ func Test_matchfuzzy()
   call assert_equal(['one', 'onex', 'onexx'], ['onexx', 'one', 'onex']->matchfuzzy('one'))
   " prefer complete matches over separator matches
   call assert_equal(['.vim/vimrc', '.vim/vimrc_colors', '.vim/v_i_m_r_c'], ['.vim/vimrc', '.vim/vimrc_colors', '.vim/v_i_m_r_c']->matchfuzzy('vimrc'))
+  " gap penalty
+  call assert_equal(['xxayybxxxx', 'xxayyybxxx', 'xxayyyybxx'], ['xxayyyybxx', 'xxayyybxxx', 'xxayybxxxx']->matchfuzzy('ab'))
+
+  " match multiple words (separated by space)
+  call assert_equal(['foo bar baz'], ['foo bar baz', 'foo', 'foo bar', 'baz bar']->matchfuzzy('baz foo'))
+  call assert_equal([], ['foo bar baz', 'foo', 'foo bar', 'baz bar']->matchfuzzy('one two'))
+  call assert_equal([], ['foo bar']->matchfuzzy(" \t "))
+
+  " test for matching a sequence of words
+  call assert_equal(['bar foo'], ['foo bar', 'bar foo', 'foobar', 'barfoo']->matchfuzzy('bar foo', {'matchseq' : 1}))
+  call assert_equal([#{text: 'two one'}], [#{text: 'one two'}, #{text: 'two one'}]->matchfuzzy('two one', #{key: 'text', matchseq: v:true}))
 
   %bw!
   eval ['somebuf', 'anotherone', 'needle', 'yetanotherone']->map({_, v -> bufadd(v) + bufload(v)})
@@ -49,6 +59,7 @@ func Test_matchfuzzy()
   call assert_equal(1, len(l))
   call assert_match('needle', l[0])
 
+  " Test for fuzzy matching dicts
   let l = [{'id' : 5, 'val' : 'crayon'}, {'id' : 6, 'val' : 'camera'}]
   call assert_equal([{'id' : 6, 'val' : 'camera'}], matchfuzzy(l, 'cam', {'text_cb' : {v -> v.val}}))
   call assert_equal([{'id' : 6, 'val' : 'camera'}], matchfuzzy(l, 'cam', {'key' : 'val'}))
@@ -64,6 +75,9 @@ func Test_matchfuzzy()
   call assert_fails("let x = matchfuzzy(l, 'cam', test_null_dict())", 'E715:')
   call assert_fails("let x = matchfuzzy(l, 'foo', {'key' : test_null_string()})", 'E475:')
   call assert_fails("let x = matchfuzzy(l, 'foo', {'text_cb' : test_null_function()})", 'E475:')
+  " matches with same score should not be reordered
+  let l = [#{text: 'abc', id: 1}, #{text: 'abc', id: 2}, #{text: 'abc', id: 3}]
+  call assert_equal(l, l->matchfuzzy('abc', #{key: 'text'}))
 
   let l = [{'id' : 5, 'name' : 'foo'}, {'id' : 6, 'name' : []}, {'id' : 7}]
   call assert_fails("let x = matchfuzzy(l, 'foo', {'key' : 'name'})", 'E730:')
@@ -75,7 +89,7 @@ func Test_matchfuzzy()
   let &encoding = save_enc
 endfunc
 
-" Test for the fuzzymatchpos() function
+" Test for the matchfuzzypos() function
 func Test_matchfuzzypos()
   call assert_equal([['curl', 'world'], [[2,3], [2,3]]], matchfuzzypos(['world', 'curl'], 'rl'))
   call assert_equal([['curl', 'world'], [[2,3], [2,3]]], matchfuzzypos(['world', 'one', 'curl'], 'rl'))
@@ -83,6 +97,10 @@ func Test_matchfuzzypos()
         \ [[0, 1, 2, 3, 4], [0, 1, 2, 3, 4]]],
         \ matchfuzzypos(['hello world hello world', 'hello', 'world'], 'hello'))
   call assert_equal([['aaaaaaa'], [[0, 1, 2]]], matchfuzzypos(['aaaaaaa'], 'aaa'))
+  call assert_equal([['a  b'], [[0, 3]]], matchfuzzypos(['a  b'], 'a  b'))
+  call assert_equal([['a  b'], [[0, 3]]], matchfuzzypos(['a  b'], 'a    b'))
+  call assert_equal([['a  b'], [[0]]], matchfuzzypos(['a  b'], '  a  '))
+  call assert_equal([[], []], matchfuzzypos(['a  b'], '  '))
   call assert_equal([[], []], matchfuzzypos(['world', 'curl'], 'ab'))
   let x = matchfuzzypos([repeat('a', 256)], repeat('a', 256))
   call assert_equal(range(256), x[1][0])
@@ -104,6 +122,12 @@ func Test_matchfuzzypos()
   " best recursive match
   call assert_equal([['xoone'], [[2, 3, 4]]], matchfuzzypos(['xoone'], 'one'))
 
+  " match multiple words (separated by space)
+  call assert_equal([['foo bar baz'], [[8, 9, 10, 0, 1, 2]]], ['foo bar baz', 'foo', 'foo bar', 'baz bar']->matchfuzzypos('baz foo'))
+  call assert_equal([[], []], ['foo bar baz', 'foo', 'foo bar', 'baz bar']->matchfuzzypos('one two'))
+  call assert_equal([[], []], ['foo bar']->matchfuzzypos(" \t "))
+  call assert_equal([['grace'], [[1, 2, 3, 4, 2, 3, 4, 0, 1, 2, 3, 4]]], ['grace']->matchfuzzypos('race ace grace'))
+
   let l = [{'id' : 5, 'val' : 'crayon'}, {'id' : 6, 'val' : 'camera'}]
   call assert_equal([[{'id' : 6, 'val' : 'camera'}], [[0, 1, 2]]],
         \ matchfuzzypos(l, 'cam', {'text_cb' : {v -> v.val}}))
@@ -126,6 +150,7 @@ func Test_matchfuzzypos()
   call assert_fails("let x = matchfuzzypos(l, 'foo', {'key' : 'name'})", 'E730:')
 endfunc
 
+" Test for matchfuzzy() with multibyte characters
 func Test_matchfuzzy_mbyte()
   CheckFeature multi_lang
   call assert_equal(['ンヹㄇヺヴ'], matchfuzzy(['ンヹㄇヺヴ'], 'ヹヺ'))
@@ -136,19 +161,19 @@ func Test_matchfuzzy_mbyte()
   call assert_equal(['ππbbππ', 'πππbbbπππ', 'ππππbbbbππππ', 'πbπ'],
         \ matchfuzzy(['πbπ', 'ππbbππ', 'πππbbbπππ', 'ππππbbbbππππ'], 'ππ'))
 
+  " match multiple words (separated by space)
+  call assert_equal(['세 마리의 작은 돼지'], ['세 마리의 작은 돼지', '마리의', '마리의 작은', '작은 돼지']->matchfuzzy('돼지 마리의'))
+  call assert_equal([], ['세 마리의 작은 돼지', '마리의', '마리의 작은', '작은 돼지']->matchfuzzy('파란 하늘'))
+
   " preference for camel case match
   call assert_equal(['oneĄwo', 'oneąwo'],
         \ ['oneąwo', 'oneĄwo']->matchfuzzy('oneąwo'))
   " preference for complete match then match after separator (_ or space)
-  if has("win32")
-    " order is different between Windows and Unix :(
-    " It's important that the complete match is first
-    call assert_equal(['ⅠⅡabㄟㄠ', 'ⅠⅡa bㄟㄠ', 'ⅠⅡa_bㄟㄠ'],
-          \ ['ⅠⅡabㄟㄠ', 'ⅠⅡa_bㄟㄠ', 'ⅠⅡa bㄟㄠ']->matchfuzzy('ⅠⅡabㄟㄠ'))
-  else
-    call assert_equal(['ⅠⅡabㄟㄠ'] + sort(['ⅠⅡa_bㄟㄠ', 'ⅠⅡa bㄟㄠ']),
+  call assert_equal(['ⅠⅡabㄟㄠ'] + sort(['ⅠⅡa_bㄟㄠ', 'ⅠⅡa bㄟㄠ']),
           \ ['ⅠⅡabㄟㄠ', 'ⅠⅡa bㄟㄠ', 'ⅠⅡa_bㄟㄠ']->matchfuzzy('ⅠⅡabㄟㄠ'))
-  endif
+  " preference for match after a separator (_ or space)
+  call assert_equal(['ㄓㄔabㄟㄠ', 'ㄓㄔa_bㄟㄠ', 'ㄓㄔa bㄟㄠ'],
+        \ ['ㄓㄔa_bㄟㄠ', 'ㄓㄔa bㄟㄠ', 'ㄓㄔabㄟㄠ']->matchfuzzy('ㄓㄔabㄟㄠ'))
   " preference for leading letter match
   call assert_equal(['ŗŝţũŵż', 'xŗŝţũŵż'],
         \ ['xŗŝţũŵż', 'ŗŝţũŵż']->matchfuzzy('ŗŝţũŵż'))
@@ -163,6 +188,7 @@ func Test_matchfuzzy_mbyte()
         \ ['ŗŝţxx', 'ŗŝţ', 'ŗŝţx']->matchfuzzy('ŗŝţ'))
 endfunc
 
+" Test for matchfuzzypos() with multibyte characters
 func Test_matchfuzzypos_mbyte()
   CheckFeature multi_lang
   call assert_equal([['こんにちは世界'], [[0, 1, 2, 3, 4]]],
@@ -183,9 +209,13 @@ func Test_matchfuzzypos_mbyte()
   call assert_equal(range(256), x[1][0])
   call assert_equal([[], []], matchfuzzypos([repeat('✓', 300)], repeat('✓', 257)))
 
+  " match multiple words (separated by space)
+  call assert_equal([['세 마리의 작은 돼지'], [[9, 10, 2, 3, 4]]], ['세 마리의 작은 돼지', '마리의', '마리의 작은', '작은 돼지']->matchfuzzypos('돼지 마리의'))
+  call assert_equal([[], []], ['세 마리의 작은 돼지', '마리의', '마리의 작은', '작은 돼지']->matchfuzzypos('파란 하늘'))
+
   " match in a long string
-  call assert_equal([[repeat('♪', 300) .. '✗✗✗'], [[300, 301, 302]]],
-        \ matchfuzzypos([repeat('♪', 300) .. '✗✗✗'], '✗✗✗'))
+  call assert_equal([[repeat('ぶ', 300) .. 'ẼẼẼ'], [[300, 301, 302]]],
+        \ matchfuzzypos([repeat('ぶ', 300) .. 'ẼẼẼ'], 'ẼẼẼ'))
   " preference for camel case match
   call assert_equal([['xѳѵҁxxѳѴҁ'], [[6, 7, 8]]], matchfuzzypos(['xѳѵҁxxѳѴҁ'], 'ѳѵҁ'))
   " preference for match after a separator (_ or space)