How to reproduce:
Type ㅇ ㅕ ㅇ ㅇ ㅓ in Korean. (This merges to 영어, which means "English").
Search bar assembles to 영어.
What actually happens:
Search bar breaks it into ㅇㅕㅇ어. The first word is not merged into 영 and that prevents search. When you delete the whole string and re-type the phrase, it works fine.
It was fine when I tested on beta-labs, namely at T214509: Help panel: testing search in Korean.
- Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.109 Safari/537.36
- Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.109 Safari/537.36.