Perhaps you should try some spelling variations:
wang xiaoping » wang xiaodong, deng xiaoping, wang xiaolin
wang huan » wang hua, wang xuan, wang yuhan
huan tan » huan t'an, huang tao, tan tan
tan yang » dan yang, tan ying, tan yong
yang jin » yang jie, yang jun, ying jin
jin hong » tin hong, jin song, min hong

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 (zhang xiaobo)) wang huan tan yang jin hong tan ;~.
• Adding a wildcard symbol may retrieve word variants: ((wang xiaoping) or (zhang xiaobo)) wang huan tan yang jin hong tan ;*.