Perhaps you should try some spelling variations:
long charin » long chain, long chemin
wang yidan » wang yan
wang yang » wang yan, wang liang, wang yanling
china two » china's two, china top
dang hadi » dang hai
two yang » tao yang, yao yang, tan yang
yang lin » yang jin, wang lin, yang li

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: ((wang yang) OR (wang yidan)) can china two yang lin ((long charin) OR (dang hadi)) ;~.
• Adding a wildcard symbol may retrieve word variants: ((wang yang) or (wang yidan)) can china two yang lin ((long charin) or (dang hadi)) ;*.