Perhaps you should try some spelling variations:
wang xiaoping » wang xiaodong, deng xiaoping, wang xiaolin
wuhan china » tuan china, yunnan china
seung yeon » jeong yeon, seung won, seung youn
seung joon » kyung joon, seung won, seung youn
chang hari » chang ha, chang part, shang hai
china wen » chia wen, china won, ching wen

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 xiaoping wuhan china wen ((seung yeon) OR (seung joon)) chang hari ;~.
• Adding a wildcard symbol may retrieve word variants: wang xiaoping wuhan china wen ((seung yeon) or (seung joon)) chang hari ;*.