Perhaps you should try some spelling variations:
guan rene » juan rene, glas rene
wong shiu » wong siu, cong shu, song shin
lang yan » wang yan, wang yang, zhang yan
gan guan » yan guan, quan guan, fan guon
yang jun » pang jun, yang jin, yang judy
yang jui » yang judy, yang xi, yang yi
yan gan » yan guan, yan clan, yan wang
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: lang yan gan guan rene ((((yang jun) OR (yang jui))) OR (yang di)) ((wong shiu) OR (dong sin)) ;~.
• Adding a wildcard symbol may retrieve word variants: lang yan gan guan rene ((((yang jun) or (yang jui))) or (yang di)) ((wong shiu) or (dong sin)) ;*.