Perhaps you should try some spelling variations:
wang yuhan » wang luhang, wang yan, wang yidan
wang wang » wang yang, wang liang, wang yan
yuhan hua » tuan hua, yuan hui, yuhuan huang
hua irene » hua ren
yang jie » yang jin, yang di, yang jui
wong sam » wong sau, von sam, wong max
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 wang yuhan hua irene yang jie ((((wong sam) OR (wong lai))) OR (kong sar)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang wang yuhan hua irene yang jie ((((wong sam) or (wong lai))) or (kong sar)) ;*.