Perhaps you should try some spelling variations:
cheng wong » cheng leong, chen rong, chen wang
meng yuan » meng hsuan, feng juan
fang yuan » wang yuhan, wang yan, tang yun
wang anh » dang anh, wang yang, wang yan
anh tuan » anh tran, dinh tuan, oanh tran
wong sam » wong sau, wong lai, kong sar
tuan vu » thanh vu, tuan hua

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 anh tuan vu ((((meng yuan) OR (ren yan))) OR (fang yuan)) cheng wong sam ;~.
• Adding a wildcard symbol may retrieve word variants: wang anh tuan vu ((((meng yuan) or (ren yan))) or (fang yuan)) cheng wong sam ;*.