Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
yan yuan » yan guan, fang yuan, nan yan
hua rene » hua ren, juan rene
wong sam » wong sau, wong lai, kong sar
wong siu » wong shiu, kong siu, wong sau
yan yan » nan yan, wang yan, qian yan
shang » zhang, chang, sheng

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: wan ((((yan yan) OR (yan yuan))) OR (yang yang)) hua rene shang jin ((wong sam) OR (wong siu)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan ((((yan yan) OR (yan yuan))) or (yang yang)) hua rene shang jin ((wong sam) or (wong siu)) ;~".
• Adding a wildcard symbol may retrieve word variants: wan ((((yan yan) OR (yan yuan))) or (yang yang)) hua rene shang jin ((wong sam) or (wong siu)) ;*.