Perhaps you should try some spelling variations:
ren yang » ren yan, chen yang, dan yang
qian yan » qian jun, qian yi
yang jin » yang jie, yang jun, ying jin
wong sam » wong sau, wong lai, von sam
yan yan » yan yuan, nan yan, yang yang
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 (qian yan)) hua ren yang jin ((wong sam) OR (kong sar)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang ((yan yan) or (qian yan)) hua ren yang jin ((wong sam) or (kong sar)) ;*.