Perhaps you should try some spelling variations:
sang minh » kang minah, anh minh, song min
hong long » hong kong, hong jong, hong hong
tan yang » dan yang, tan ying, tan yong
yang jui » yang judy, yang xi
wai tan » wai yan, wahid tan
yang yi » yang xi
yi ying » li ying, yi jing, yi ning
hong ng » hong kong, hong jong, hong hong

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: wai tan yang yi ying ((sang minh) OR (((yang jui) OR (yang di)))) ((hong ng) OR (hong long)) ;~.
• Adding a wildcard symbol may retrieve word variants: wai tan yang yi ying ((sang minh) or (((yang jui) or (yang di)))) ((hong ng) or (hong long)) ;*.