Perhaps you should try some spelling variations:
wang daoping » wang xiaoping, wang danning, wang xiaobing
daoping can » mapping can
daun yang » du yang, tan yang, un yang
minh dang » minh cong, mich dann
dan sang » dan dana, dan qing, du sang
dan yang » tan yang, wang yang, yang 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 daoping can china ((dan sang) OR (((dan yang) OR (daun yang)))) minh dang hai ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang daoping can china ((dan sang) or (((dan yang) OR (daun yang)))) minh dang hai ;~".
• Adding a wildcard symbol may retrieve word variants: wang daoping can china ((dan sang) or (((dan yang) OR (daun yang)))) minh dang hai ;*.