Perhaps you should try some spelling variations:
chan kang » chung kang, chan eng, chan fong
yuan kang » yuan wang, yuan chang, yuan kai
chen ying » chen yang, chen ping, chen jing
ying john » king john, young john, ying jin
john song » john wong, john bonn, john ngosong
wang » wan
shin » skin, sein, thin

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 OR wing) OR lang) nan ((yuan kang) OR (chan kang)) chen ying john song shin ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang or wing) or lang) nan ((yuan kang) OR (chan kang)) chen ying john song shin ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang or wing) or lang) nan ((yuan kang) OR (chan kang)) chen ying john song shin ;*.