Perhaps you should try some spelling variations:
seung yeon » seung joon, seung won, seung youn
jeong yeon » jeong hyeok, jeang yean, jeong dahyeon
wang ying » wang yang, wang yong, wang jing
yang api » yang dali, yang di, yang xi
yang jui » yang judy, yang di, yang xi
test kaw » test a, test kit, test awt
kaw min » kyaw min, kan min, law main

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

• If you are trying to use Boolean operators, they must be ALL CAPS: wang ying ((yang api) OR (yang jui)) test kaw min ((jeong yeon) OR (seung yeon)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ying ((yang api) OR (yang jui)) test kaw min ((jeong yeon) or (seung yeon)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang ying ((yang api) OR (yang jui)) test kaw min ((jeong yeon) or (seung yeon)) ;*.