Perhaps you should try some spelling variations:
wuhan china » tuan china, yunnan china
long trip » longer trip, long tail, longer trips
china aus » china als, china auf, china aids
yang july » yang judy, yang jun
yang jui » yang judy, yang di
ying hua » ming hua, wang hua, ying zhu
yang xi » yang di
yang yi » yang di

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 aus ((((yang jui) OR (((yang xi) OR (yang yi))))) OR (yang july)) ying hua ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "long trip wuhan china aus ((((yang jui) or (((yang xi) OR (yang yi))))) or (yang july)) ying hua ;~".
• Adding a wildcard symbol may retrieve word variants: long trip wuhan china aus ((((yang jui) or (((yang xi) OR (yang yi))))) or (yang july)) ying hua ;*.