Perhaps you should try some spelling variations:
chung kang » chan kang, chung kay
chung tong » chung chong, chung mona, phung tung
hang china » han china, change china, ghana china
china won » china women, china wang, china who
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: ((chung kang) OR (chung tong)) hang china won ((yang jun) OR (yang jin)) tong hui ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((chung kang) OR (chung tong)) hang china won ((yang jun) or (yang jin)) tong hui ;~".
• Adding a wildcard symbol may retrieve word variants: ((chung kang) OR (chung tong)) hang china won ((yang jun) or (yang jin)) tong hui ;*.