Perhaps you should try some spelling variations:
ren yang » ren yan, chen yang, dan yang
yang jin » yang jie, yang jun, ying jin
wong sam » wong sau, wong lai, von sam
yan yan » yan yuan, yang yang, wang yan
nan yan » nan ya, wang yan, qian yan
hua ren » hua chen
wang » wing, wan, lang
sar » sara, star, saur

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 yan) OR (nan yan)) hua ren yang jin ((wong sam) OR (kong sar)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang ((yan yan) or (nan yan)) hua ren yang jin ((wong sam) or (kong sar)) ;*.