Perhaps you should try some spelling variations:
wang yuhan » wang luhang, wang yan, wang yidan
wong shiu » wong siu, cong shu, song shin
yuhan lu » yushan li, han lu
hua rest » hua ren
wong sam » wong sau, wong lai, kong sar
wong yue » wang yue, hong yu
lu hua » li hua, qu 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 yuhan lu hua rest (tang OR tan) li ((((wong sam) OR (wong shiu))) OR (wong yue)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang yuhan lu hua rest (tang or tan) li ((((wong sam) or (wong shiu))) or (wong yue)) ;*.