Perhaps you should try some spelling variations:
wang xiaobing » wang xiaodong, wang xiaolin, huang xiaoting
wang xiaoping » wang xiaodong, deng xiaoping, wang xiaolin
sang minh » kang minah, anh minh, song min
minh dang » minh cong, mich dann
tan chia » tuan china, than china, can china
chia du » china due
du sang » du yang

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 xiaobing) OR (wang xiaoping)) tan chia du sang minh dang (hai OR haji) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang xiaobing) OR (wang xiaoping)) tan chia du sang minh dang (hai or haji) ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang xiaobing) OR (wang xiaoping)) tan chia du sang minh dang (hai or haji) ;*.