Perhaps you should try some spelling variations:
wang xiaoping » wang xiaodong, wang xiaolin, huang xiaoting
yunnan china » urban china, tuan china, wuhan china
kyung joon » kyung woo, seung joon
chang hari » chang ha, chang part, shang hai
china jin » china jing, china jiing, china joins
yang joon » yang jin, yang jun

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) OR (deng xiaoping)) yunnan china jin ((yang joon) OR (kyung joon)) chang hari ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang xiaoping) or (deng xiaoping)) yunnan china jin ((yang joon) OR (kyung joon)) chang hari ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang xiaoping) or (deng xiaoping)) yunnan china jin ((yang joon) OR (kyung joon)) chang hari ;*.