Perhaps you should try some spelling variations:
tuan china » wuhan china, can china, taiwan china
dong yang » dong hoang, wang yang, yang yang
john wong » john song, john bonn
wong shiu » wong siu, cong shu, song shin
dong tan » hong tan, dong nan, dong sin
wen ying » en yin, fan ying, ran ying
jin ying » li ying

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: ((dong tan) OR (dong yang)) tuan china ((wen ying) OR (jin ying)) john wong shiu ;~.
• Adding a wildcard symbol may retrieve word variants: ((dong tan) or (dong yang)) tuan china ((wen ying) or (jin ying)) john wong shiu ;*.