Perhaps you should try some spelling variations:
tuan china » wuhan china, can china, taiwan china
duong anh » dang anh, duong van, trong anh
china als » china aus, china aids, china a
yang july » yang judy, yang jui, yang jun
anh tuan » anh tran, dinh tuan, oanh tran
yang yi » yang xi, yang jui
wang » 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: duong anh tuan china als ((((yang yi) OR (yang di))) OR (yang july)) (wang OR wing) hua ;~.
• Adding a wildcard symbol may retrieve word variants: duong anh tuan china als ((((yang yi) or (yang di))) or (yang july)) (wang or wing) hua ;*.