Perhaps you should try some spelling variations:
seung yeon » jeong yeon, seung joon, seung won
keong yeon » jeong yeon
wang jing » wang ning, wang liang, wang yang
jing yang » jing fang, ying yang, wang yang
test awt » test auf
yang xi » yang di, yang yi, yang jui
test a » test _, test 4, test 5

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 jing yang xi ((test awt) OR (test a)) kin ((keong yeon) OR (seung yeon)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang jing yang xi ((test awt) or (test a)) kin ((keong yeon) OR (seung yeon)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang jing yang xi ((test awt) or (test a)) kin ((keong yeon) OR (seung yeon)) ;*.