Perhaps you should try some spelling variations:
long thanh » luong thanh, long trinh, truong thanh
tuan china » wuhan china, can china, taiwan china
china wang » china yang, china chang, china zhang
long han » long chain, long haul, jeong han
yang jui » yang judy, yang xi
tong hui » wang hui
yang yi » yang xi

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 han) OR (long thanh)) tuan china wang ((yang di) OR (((yang yi) OR (yang jui)))) tong hui ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((long han) OR (long thanh)) tuan china wang ((yang di) or (((yang yi) or (yang jui)))) tong hui ;~".
• Adding a wildcard symbol may retrieve word variants: ((long han) OR (long thanh)) tuan china wang ((yang di) or (((yang yi) or (yang jui)))) tong hui ;*.