Perhaps you should try some spelling variations:
wuhan china » tuan china, yunnan china
gain yang » dan yang, daun yang, tan yang
yao shang » gao shang, yao yang, hao zhang
shang hai » shang kai, dang hai, chang ha
lang yan » wang yang, zhang yan, yang yang
tuan hua » tan hua, tuan vu, yuan hui
yang yao » yang yang, yang yi, yang fan

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: ((lang yan) OR (wang yan)) ((tuan hua) OR (wuhan china)) gain yang yao shang hai ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((lang yan) OR (wang yan)) ((tuan hua) or (wuhan china)) gain yang yao shang hai ;~".
• Adding a wildcard symbol may retrieve word variants: ((lang yan) OR (wang yan)) ((tuan hua) or (wuhan china)) gain yang yao shang hai ;*.