Perhaps you should try some spelling variations:
wuhan china » tuan china, yunnan china
long trip » longer trip, long tail, longer trips
china fan » china fax, china fall, china fur
yang july » yang judy, yang jun
yang jie » yang jin, yang di, yang xi
yang jui » yang judy, yang di, yang xi
wang » wing, wan

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

• If you are trying to use Boolean operators, they must be ALL CAPS: long trip wuhan china fan ((((yang jie) OR (yang jui))) OR (yang july)) (wang OR lang) zhi ;~.
• Adding a wildcard symbol may retrieve word variants: long trip wuhan china fan ((((yang jie) or (yang jui))) or (yang july)) (wang or lang) zhi ;*.