Perhaps you should try some spelling variations:
trading china » trade china
leong tang » leung tang
ming china » kong china, facing china
wang yang » wang yan, wang liang, wang yanling
yang lin » yang jin, wang lin, yang li
lin wang » li wang, limin wang, liqin wang
wang hui » wang hua, wang zhi, wang wei

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)) wang yang lin wang hui ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: leong tang ((ming china) OR (trading china)) wang yang lin wang hui ;*.