Perhaps you should try some spelling variations:
tuan china » wuhan china, can china, taiwan china
china meng » china meeting
kang young » wang hyoung
yang yang » wang yang, wang yan
meng yuan » meng hsuan, fang yuan, feng juan
kang hong » kong hong, wang hong, quang hong
dong nan » dong yang, dong sin, dong bin

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 meng yuan ((kang hong) OR (kang young)) yu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong nan) OR (yang yang)) tuan china meng yuan ((kang hong) OR (kang young)) yu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong nan) or (yang yang)) tuan china meng yuan ((kang hong) OR (kang young)) yu ;*".