Perhaps you should try some spelling variations:
wuhan china » tuan china, yunnan china
yuan cheng » yuan chang, huang cheng, yu cheng
than china » tuan china, han china, can china
qian wang » yiqian wang, qian rong, qian yan
ong yue » wong yue, ong ye, wang yue
dr ong » mr ong
yan » yang, ryan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((qian wang) or (yuan cheng)) ((than china) OR (wuhan china)) ren yan dr ong yue ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((qian wang) OR (yuan cheng)) ((than china) OR (wuhan china)) ren yan dr ong yue ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((qian wang) or (yuan cheng)) ((than china) OR (wuhan china)) ren yan dr ong yue ;*".