Perhaps you should try some spelling variations:
xiaodong tan » xiaodong huang, xiaoyang tang, xiaodong yu
yang cindy » yang mind
chia daun » chia lan
sang minh » kang minah, anh minh, song min
tan chia » tuan china, than china, can china
yang jie » yang jin, yang di, yang jui
dan hai » dang hai, dan phan, dann hat
wang » wing, wan, lang

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 xiaodong tan chia daun ((((sang minh) OR (yang jie))) OR (yang cindy)) dan hai ;~.
• Adding a wildcard symbol may retrieve word variants: wang xiaodong tan chia daun ((((sang minh) or (yang jie))) or (yang cindy)) dan hai ;*.