Perhaps you should try some spelling variations:
wang ying » wang yang, wang yong, wang jing
sang minh » kang minah, anh minh, song min
yang liu » yang li, yang di, yang xi
yang lin » yang jin, wang lin, yang li
gong min » jong min, song min, gong meng
kong siu » kong eiu, wong siu, dong sin
von sam » von sa, von sap, von scham

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: wang ying ((yang liu) OR (yang lin)) lili ((gong min) OR (sang minh)) ((kong siu) OR (von sam)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ying ((yang liu) OR (yang lin)) lili ((gong min) or (sang minh)) ((kong siu) or (von sam)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang ying ((yang liu) OR (yang lin)) lili ((gong min) or (sang minh)) ((kong siu) or (von sam)) ;*.