Perhaps you should try some spelling variations:
tuan china » wuhan china, can china, taiwan china
china meng » china meeting
chang long » change long, thang long, change hong
wang yang » wang yan, wang liang, wang yanling
han chang » huang chang, than change, can change
meng han » meng hsuan, cheng han, jeong han
long yu » hong yu, long du, rong yu

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((dong or doing) sin) or (wang yang)) tuan china meng han chang long yu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((dong OR doing) sin) OR (wang yang)) tuan china meng han chang long yu ;*.