Perhaps you should try some spelling variations:
wang ying » wang yang, wang jing, wang ning
wang yong » wang yang, wang hyoung, wang yan
lili liu » lilik lia, liu liu
wong sau » wong siu, wong shiu, wong lai
gang min » gong min, tang min, chang min
wong sam » wong lai, kong sar, von sam
liu ling » lin ling, liu linn, liu qing

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) OR (wang yong)) yang ((liu ling) OR (lili liu)) gang min ((wong sau) OR (wong sam)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang ying) OR (wang yong)) yang ((liu ling) or (lili liu)) gang min ((wong sau) or (wong sam)) ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang ying) OR (wang yong)) yang ((liu ling) or (lili liu)) gang min ((wong sau) or (wong sam)) ;*.