Perhaps you should try some spelling variations:
than china » tuan china, han china, wuhan china
china gain » china grain, china main, china going
yan than » van thanh, yan zhang, yan clan
yang lin » yang jin, wang lin, yang liang
wan yan » wang yan, nan yan, wai yan
yang li » yang xi, yang yi, tang li
hong ng » hong kong, hong jong, hong hong

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: wan yan than china gain ((((yang li) OR (yang lin))) OR (yang di)) hong ng ;~.
• Adding a wildcard symbol may retrieve word variants: wan yan than china gain ((((yang li) or (yang lin))) or (yang di)) hong ng ;*.