Perhaps you should try some spelling variations:
seung yeon » jeong yeon, seung joon, seung won
wang ying » wang yang, wang yong, wang jing
min seung » min jeong
yang li » yang lin, yang di, yang xi
yang yi » yang di, yang xi, yang jui
test 5 » test _, test 4
5 min » 5 main, 15 min, _ min

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 li) OR (yang yi)) test 5 min seung yeon ;~.
• Adding a wildcard symbol may retrieve word variants: wang ying ((yang li) or (yang yi)) test 5 min seung yeon ;*.