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 i » yang di, yang xi, yang yi
i test » ai test, i testi, ii test
test a » test _, test 4, test 5
a mini » _ mini, a mining

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) OR (wang hyoung)) yang i test a mini ((seung yeon) OR (jeong yeon)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang ying) or (wang hyoung)) yang i test a mini ((seung yeon) OR (jeong yeon)) ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang ying) or (wang hyoung)) yang i test a mini ((seung yeon) OR (jeong yeon)) ;*.