Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
juan rene » juan meng, juan rana
yan guan » gan guan, yan yuan, yang guang
yang jin » yang jie, yang jun, ying jin
yang jui » yang judy, yang di, yang xi
wong sam » wong sau, wong lai, kong sar
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 guan) OR (yang yang)) juan rene ((yang jin) OR (yang jui)) wong sam ;~.
• Adding a wildcard symbol may retrieve word variants: wang ((yan guan) or (yang yang)) juan rene ((yang jin) or (yang jui)) wong sam ;*.