Perhaps you should try some spelling variations:
china loren » china lehren, china korea, china more
tuan china » wuhan china, can china, taiwan china
dang anh » duong anh
anh tuan » anh tran, dinh tuan, oanh tran
yang jin » yang jie, yang jun, ying jin
wong sam » wong sau, wong lai, kong sar
yang xi » yang yi, yang jui

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: dang anh tuan china loren ((((((yang jin) OR (yang di))) OR (yang xi))) OR (yang judy)) wong sam ;~.
• Adding a wildcard symbol may retrieve word variants: dang anh tuan china loren ((((((yang jin) or (yang di))) or (yang xi))) or (yang judy)) wong sam ;*.