Perhaps you should try some spelling variations:
chuan rain » than rain
rain sang » shin sang
sang minh » kang minah, anh minh, song min
chang mae » chang ha, changes made
wan yang » wang yang, dan yang, tan yang
ka chuan » say chuan, hai chuan, ka chai
hong hai » shang hai, zhong tai, dang hai
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 ((hong hai) OR (chang mae)) ;~.
• Adding a wildcard symbol may retrieve word variants: wan yang ka chuan rain sang minh ((hong hai) or (chang mae)) ;*.