Perhaps you should try some spelling variations:
trading china » trade china
leong tang » leung tang
ming china » kong china, facing china
dan yang » daun yang, tan yang, wang yang
yang lin » yang jin, wang lin, yang li
lin tong » lin zong, xin tong, lee tong
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: leong tang ((ming china) OR (trading china)) dan yang lin tong hui ;~.
• Adding a wildcard symbol may retrieve word variants: leong tang ((ming china) or (trading china)) dan yang lin tong hui ;*.