Perhaps you should try some spelling variations:
wang daoping » wang xiaoping, wang danning, wang xiaobing
tuan china » wuhan china, can china, taiwan china
daun yang » du yang, tan yang, un yang
mind hong » min hong, mind how, amin hong
dan yang » tan yang, wang yang, yang yang
hong hai » shang hai, zhong tai, dang hai

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