Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
yan yang » yao yang, dan yang, tan yang
lili liu » lilik lia
gang min » gong min, tang min, chang min
wong sau » wong siu, wong shiu, wong lai
wong sam » wong lai, kong sar, von sam
liu liu » liu li, liu lili, liu ling
wang » wing, wan, lang

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