Perhaps you should try some spelling variations:
wang xiaoping » wang xiaodong, deng xiaoping, wang xiaolin
wang yangming » wang yangming's, wang yanling, wang danning
tuan hua » tan hua, tuan vu, yuan hui
tan yang » dan yang, tan ying, tan yong
yang tan » yang fan, yang dean, yang yang
hong hai » shang hai, zhong tai, dang hai
hua tan » hua ban, huan t'an

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 (wang yangming)) tuan hua tan yang tan hong hai ;~.
• Adding a wildcard symbol may retrieve word variants: ((wang xiaoping) or (wang yangming)) tuan hua tan yang tan hong hai ;*.