Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, yang yang
wang yong » wang yang, wang hyoung, wang yan
sang minh » kang minah, anh minh, song min
yang lin » yang jin, wang lin, huang lin
wong sam » wong sau, wong lai, kong sar
yang li » yang di, yang xi, yang yi
tang » tan, lang, gang

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 yong ((((yang lin) OR (yang liang))) OR (yang li)) ju ((tang li) OR (sang minh)) wong sam ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yong ((((yang lin) OR (yang liang))) or (yang li)) ju ((tang li) or (sang minh)) wong sam ;~".
• Adding a wildcard symbol may retrieve word variants: wang yong ((((yang lin) OR (yang liang))) or (yang li)) ju ((tang li) or (sang minh)) wong sam ;*.