Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
yan guan » gan guan, yan yuan, yang guang
gui guan » gan guan, gui hua, tuo guan
pang jun » yang jui
wong sam » wong sau, wong lai, kong sar
yang xi » yang di, yang yi, yang jui
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 (gui guan))) OR (yang yang)) hui irene ((pang jun) OR (yang xi)) wong sam ;~.
• Adding a wildcard symbol may retrieve word variants: wang ((((yan guan) or (gui guan))) or (yang yang)) hui irene ((pang jun) or (yang xi)) wong sam ;*.