Korean words cannot be searched

I think I know why it didn’t work even with min search term length 2

I never put empty space between syllable when search Korean words
but the search terms showed in dashboard have space after every syllables…

so what I’m saying is

what I searched is 말랑 but the search query appeared in dashboard is 말 랑
what I searched is 중국 but the search query appeared in dashboard is 중 국
what I searched is 차트 but the search query appeared in dashboard is 차 트

this is why discourse couldn’t show any search result I think.
How can I fix this lovely bug?