Perhaps you should try some spelling variations:
yeung kang » chung kang, leung tang
hang china » han china, change china, ghana china
china yang » china ying, china wang, china chang
kang hang » kang han, kong hang
yang jun » pang jun, yang jin, yang judy
yang jui » yang judy, yang di, yang xi
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 hang china yang ((yang jun) OR (yang jui)) tong hui ;~.
• Adding a wildcard symbol may retrieve word variants: yeung kang hang china yang ((yang jun) or (yang jui)) tong hui ;*.