Perhaps you should try some spelling variations:
wang xiaoping » wang xiaodong, deng xiaoping, wang xiaolin
xiaoping tan » xiaoyang tang, xiaojing a, xiaoping _
tan chia » tuan china, than china, can china
wei yang » pei yang, wei wang, wei yang's
jin data » main data, own data, von data
pei yun » lei kyun, mei yung, pei yang

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 tan chia ((wei yang) OR (pei yun)) jin data (hai OR hari) ;~.
• Adding a wildcard symbol may retrieve word variants: wang xiaoping tan chia ((wei yang) or (pei yun)) jin data (hai or hari) ;*.