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, wang yang, yang yang
tan yang » tan ying, tan yong, tao yang
tong hui » wang hui
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) OR (tan 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) OR (tan yang)) li tong hui ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "leong tang ((ming china) or (trading china)) ((dan yang) OR (tan yang)) li tong hui ;*".