Perhaps you should try some spelling variations:
guan rene » juan rene, glas rene
gan guan » yan guan, quan guan, fan guon
yang jin » yang jie, yang jun, ying jin
yang jui » yang judy, yang xi, yang yi
wong siu » wong shiu, kong siu, wong sau
yan gan » yan guan, yan clan, yan wang
wang » wing, wan, lang
sin » sign, sind, skin

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 gan guan rene ((((yang jin) OR (yang jui))) OR (yang di)) ((wong siu) OR (dong sin)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang yan gan guan rene ((((yang jin) or (yang jui))) or (yang di)) ((wong siu) or (dong sin)) ;*.