Perhaps you should try some spelling variations:
zhang xin » zhang jian, zhang ming, zhang fan
wang dan » wang yan, wang ban, wang yidan
dan yuan » yan yuan, dan sukan, fang yuan
wong siu » wong shiu, kong siu, wong sau
wong sam » wong sau, wong lai, kong sar
yuan li » yuan lin, guan li, yuan zi
li zhen » li chen, li zhenan, li zhang

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wang dan yuan li zhen zhang xin ((wong siu) or (wong sam)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang dan yuan li zhen zhang xin ((wong siu) OR (wong sam)) ;*.