Perhaps you should try some spelling variations:
tuan china » wuhan china, can china, taiwan china
yang yang » wang yang, wang yan
feng yuan » fang yuan, feng juan, meng yuan
yuan kang » yuan wang, yuan chang, chan kang
kang hong » kong hong, wang hong, kang young
dong nan » dong yang, dong sin, dong bin
hong yu » wong yue

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((dong nan) or (yang yang)) tuan china feng yuan kang hong yu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong nan) OR (yang yang)) tuan china feng yuan kang hong yu ;*.