Perhaps you should try some spelling variations:
yeung kang » chung kang, leung tang
china wang » china yang, china chang, china zhang
han china » hang china, than china, can china
kang han » kang chen, kong hang, zhang han
yang jun » yang jui, pang jun, yang judy
yang jin » yang jie, ying jin, shang jin
tong hui » wang hui

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: yeung kang han china wang ((yang jun) OR (((yang jin) OR (yang di)))) tong hui ;~.
• Adding a wildcard symbol may retrieve word variants: yeung kang han china wang ((yang jun) or (((yang jin) or (yang di)))) tong hui ;*.