Perhaps you should try some spelling variations:
chan kang » chung kang, chan eng, chan fong
chia chen » china chen, chia wen, hua chen
chen yang » chen rong
yan wang » yuan wang, yang yang, qian wang
tan chia » tuan china, than china, can china
yang jui » yang judy, yang di, yang xi
jui wong » ji won, jui meng
wong yue » wang yue, hong yu
yu wang » yue wang, yu fang, yu gang

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: ((((yu wang) OR (yan wang))) OR (chan kang)) tan chia chen yang jui wong yue ;~.
• Adding a wildcard symbol may retrieve word variants: ((((yu wang) or (yan wang))) or (chan kang)) tan chia chen yang jui wong yue ;*.