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