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
tong hui » wang hui
yang li » yang lin, yang di, yang xi
li tong » li cong, li rong, li song

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: leong tang ((ming china) or (trading china)) dan yang li tong hui ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: leong tang ((ming china) OR (trading china)) dan yang li tong hui ;*.