Perhaps you should try some spelling variations:
yan chang » yuan chang, han chang, yan zhang
yuan wang » yuan kang, yuan chang, qian wang
wong shiu » wong siu, cong shu, song shin
kong saur » kong sar, kong siu, kong your
yan wang » yang yang, qian wang, yan liang
yang jie » yang jin, yang di, yang jui
nan yan » nan ya, wang yan, qian yan

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: nan yan chang ((yan wang) OR (yuan wang)) yang jie ((wong shiu) OR (kong saur)) ;~.
• Adding a wildcard symbol may retrieve word variants: nan yan chang ((yan wang) or (yuan wang)) yang jie ((wong shiu) or (kong saur)) ;*.