Perhaps you should try some spelling variations:
wuhan china » tuan china, yunnan china
gain yang » dan yang, daun yang, tan yang
jia zhang » jie zhang, jia zhangke, xiao zhang
zhang dai » zhang fan, zhang wei, zhang yan
wing tan » liang tan, hong tan, tin tan
wing ian » twinn ian, wing sun
yang jia » yang jie, yang jin, yang jing

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: ((wing tan) OR (wing ian)) ((wang hua) OR (wuhan china)) gain yang jia zhang dai ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wing tan) OR (wing ian)) ((wang hua) or (wuhan china)) gain yang jia zhang dai ;~".
• Adding a wildcard symbol may retrieve word variants: ((wing tan) OR (wing ian)) ((wang hua) or (wuhan china)) gain yang jia zhang dai ;*.