Perhaps you should try some spelling variations:
thanh taiwan » thai taiwan, trade taiwan, china taiwan
china zhang » china chang, cheng zhang, chin chang
long thanh » luong thanh, long han, long trinh
china won » china women, china wang, china who
yang jui » yang judy, yang xi, yang yi
wang hui » wang hua, wang zhi, wang wei

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: long thanh taiwan ((china won) OR (china zhang)) ((yang di) OR (yang jui)) wang hui ;~.
• Adding a wildcard symbol may retrieve word variants: long thanh taiwan ((china won) or (china zhang)) ((yang di) or (yang jui)) wang hui ;*.