Perhaps you should try some spelling variations:
zhang ming » zhang xin
lang yan » wang yan, wang yang, zhang yan
yan yuan » yan guan, fang yuan, nan yan
kong siu » kong eiu, dong sin, kong sar
wong siu » wong shiu, wong sau, wong siew
yuan yi » yuan li, yuan zi, yuan fei
yi zhen » yi chen, yi shen, yu zheng

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

• Performing a fuzzy search may retrieve terms with similar spellings: lang yan yuan yi zhen zhang ming ((kong siu) or (wong siu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang yan yuan yi zhen zhang ming ((kong siu) OR (wong siu)) ;*.