Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
chan ming » kian ming, chan eng, chan fong
wong shiu » wong siu, cong shu, song shin
yu cheng » yu chen, _ cheng
kong siu » kong eiu, wong siu, dong sin
yang ka » yang fan, yang yao
n chen » _ chen, a chen, z chen

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: yang yang ka ((n chen) or (yu cheng)) chan ming ((kong siu) or (wong shiu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yang yang ka ((n chen) OR (yu cheng)) chan ming ((kong siu) OR (wong shiu)) ;.
• Adding a wildcard symbol may retrieve word variants: yang yang ka ((n chen) or (yu cheng)) chan ming ((kong siu) or (wong shiu)) ;*.