Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
sang minh » kang minah, anh minh, song min
wong shiu » wong siu, cong shu, song shin
yan wang » yuan wang, qian wang, yan liang
liv sang » lee sang, kil sang, le sang
gong hui » tong hui, tong shui, wang hui
wei liv » wei li, bei liv

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wang ((yan wang) OR (yang yang)) wei liv sang minh ((wong shiu) or (gong hui)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((yan wang) OR (yang yang)) wei liv sang minh ((wong shiu) OR (gong hui)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yan wang) OR (yang yang)) wei liv sang minh ((wong shiu) or (gong hui)) ;*".