Perhaps you should try some spelling variations:
wang xiaoping » deng xiaoping, wang xiaolin, huang xiaoting
chia daun » chia lan
daun sang » daun yang, du sang
sang minh » kang minah, anh minh, song min
minh dang » minh cong, mich dann
tan chia » tuan china, than china, can china
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 xiaodong)) tan chia daun sang minh dang hai ;~.
• Adding a wildcard symbol may retrieve word variants: ((wang xiaoping) or (wang xiaodong)) tan chia daun sang minh dang hai ;*.