Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
sang minh » kang minah, anh minh, song min
yang min » yang mind, tang min, yang lin
yang jin » yang jie, yang jun, ying jin
wong yue » wang yue, hong yu
yang yi » yang di, yang xi, yang jui
ng ye » ng yew, ong ye
ye a » yet a, e a, me a

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: ((yang yang) OR (yang yi))ng ye a gender ((((yang min) OR (sang minh))) OR (yang jin)) wong yue ;~.
• Adding a wildcard symbol may retrieve word variants: ((yang yang) or (yang yi))ng ye a gender ((((yang min) or (sang minh))) or (yang jin)) wong yue ;*.