Perhaps you should try some spelling variations:
wuhan china » tuan china, yunnan china
hong cheng » hong sheng, ong cheng, zong cheng
than china » tuan china, han china, can china
yuan wang » yan wang, yuan kang, yuan chang
ren lang » r lang, ren weng, ren yan
lang dr » lange der
dr hong » dr ong, dr wong, dr huang
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: ((yuan wang) or (hong cheng)) ((than china) OR (wuhan china)) ren lang dr hong yu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yuan wang) OR (hong cheng)) ((than china) OR (wuhan china)) ren lang dr hong yu ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yuan wang) or (hong cheng)) ((than china) OR (wuhan china)) ren lang dr hong yu ;".
• Adding a wildcard symbol may retrieve word variants: ((yuan wang) or (hong cheng)) ((than china) OR (wuhan china)) ren lang dr hong yu ;*.