Perhaps you should try some spelling variations:
guan juan » huang juan, san juan, quan guan
juan rene » juan meng, juan rana
wing gan » qing gan, wing ian, wing tan
gan guan » yan guan, quan guan, fan guon
yang jun » yang jui, pang jun, yang jin
wong sau » wong sam, wong siu, wong shiu
yang yi » yang xi, yang jui

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: wing gan guan juan rene ((yang jun) OR (((yang di) OR (yang yi)))) wong sau ;~.
• Adding a wildcard symbol may retrieve word variants: wing gan guan juan rene ((yang jun) or (((yang di) or (yang yi)))) wong sau ;*.