Perhaps you should try some spelling variations:
wang daoping » wang xiaoping, wang xiaobing, wang yanling
wang danning » wang yanling, wang yangming, wang ning
tuan china » wuhan china, taiwan china, yunnan china
yang mind » yang cindy, yang jin, sang minh
dan yang » daun yang, tan yang, wang yang
mind how » aid how
how hai » how has, how ai, how hci

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 daoping) OR (wang danning)) ((tuan china) OR (can china)) dan yang mind how hai ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang daoping) OR (wang danning)) ((tuan china) or (can china)) dan yang mind how hai ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang daoping) OR (wang danning)) ((tuan china) or (can china)) dan yang mind how hai ;*.