Perhaps you should try some spelling variations:
wang xiaoping » wang xiaodong, wang xiaolin, huang xiaoting
yunnan china » urban china, tuan china, wuhan china
chang hari » chang ha, chang part, shang hai
china yin » china ying, china yang, china y
yang jin » yang jun, ying jin, shang jin
yang jie » yang di, yang jui, yang xi

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