Perhaps you should try some spelling variations:
china grain » china gain, china main, china plain
wong shiu » cong shu, song shin, wong sau
pang jiu » pang jun, yang jie, pan ji
yang jin » yang jie, yang jun, ying jin
wong siu » kong siu, wong sau, wong siew
yan can » yan clan, man can, yan cong
wang » wing, wan, lang

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 yan can china grain ((pang jiu) OR (yang jin)) ((wong siu) OR (wong shiu)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang yan can china grain ((pang jiu) or (yang jin)) ((wong siu) or (wong shiu)) ;*.