Perhaps you should try some spelling variations:
chuan rain » than rain
rain sang » shin sang
sang minh » kang minah, anh minh, song min
shang hai » shang kai, chang ha, hong hai
wan yang » wang yang, dan yang, tan yang
ka chuan » say chuan, hai chuan, ka chai
yang ka » yang fan, yang yao

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: wan yang ka chuan rain sang minh ((shang hai) OR (dang hai)) ;~.
• Adding a wildcard symbol may retrieve word variants: wan yang ka chuan rain sang minh ((shang hai) or (dang hai)) ;*.