Perhaps you should try some spelling variations:
wang xiaoping » wang xiaodong, deng xiaoping, wang xiaolin
wang danning » wang yanling, wang daoping, wang yangming
wuhan china » tuan china, yunnan china
minh dang » minh cong, mich dann
tan chia » tuan china, than china, can china
dan anh » dang anh, dan dana, dan yang
hai » hadi, haji, hari

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 danning)) ((tan chia) OR (wuhan china)) dan anh minh dang hai ;~.
• Adding a wildcard symbol may retrieve word variants: ((wang xiaoping) or (wang danning)) ((tan chia) or (wuhan china)) dan anh minh dang hai ;*.