Perhaps you should try some spelling variations:
lang yan » wang yan, wang yang, zhang yan
pang jiu » pang jun, yang jie, yang jin
wong sau » wong sam, wong siu, wong shiu
yan yan » yan yuan, nan yan, yang yang
yan hua » tan hua, ya hua, wang hua
hua ren » hua chen
yan jiu » yang jie, yang jin

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 yan hua ren ((yan jiu) or (pang jiu)) wong sau ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: lang yan yan hua ren ((yan jiu) OR (pang jiu)) wong sau ;.
• Adding a wildcard symbol may retrieve word variants: lang yan yan hua ren ((yan jiu) or (pang jiu)) wong sau ;*.