Perhaps you should try some spelling variations:
yang hoang » yang yang, anh hoang, dong hoang
davis test » davis best, david west, davis tsu
jeong yeon » jeong hyeok, jeang yean, seung yeon
wang yang » wang yan, wang liang, wang yanling
dai test » ai test, data test, api test
kaw min » kyaw min, law main
kan min » han min, kian ming, kyaw min

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wang yang hoang ((dai test) OR (davis test)) ((kaw min) or (kan min)) jeong yeon ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang hoang ((dai test) OR (davis test)) ((kaw min) OR (kan min)) jeong yeon ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang hoang ((dai test) OR (davis test)) ((kaw min) or (kan min)) jeong yeon ;*".