Perhaps you should try some spelling variations:
wang xiaoping » wang xiaodong, deng xiaoping, wang xiaolin
xiaoping tuan » xinping guan
tan yong » tan hong, tan kong, tan ying
tan yang » dan yang, tan ying, tao yang
lin zong » lin ling, lin meng
zong hai » hong hai, dang hai, long han
tuan vu » thanh vu, tuan hua

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 tuan vu ((tan yong) OR (tan yang)) lin zong hai ;~.
• Adding a wildcard symbol may retrieve word variants: wang xiaoping tuan vu ((tan yong) or (tan yang)) lin zong hai ;*.