Perhaps you should try some spelling variations:
den xiaoping » deng xiaoping, wang xiaoping, _ xiaoping
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: den xiaoping wuhan china wen ((seung yeon) OR (seung joon)) chang hari ;~.
• Adding a wildcard symbol may retrieve word variants: den xiaoping wuhan china wen ((seung yeon) or (seung joon)) chang hari ;*.