Perhaps you should try some spelling variations:
wang yidan » wang yan
yidan yang » dan yang, yin yang
chang chun » chang ch'un, chang chuan, chang chen
zhong zhi » zhang zhi, hong ghi, zhong tai
ii chang » vii chang, yi chang, ii changes
yang ii » yang di, yang xi, yang yi
chun h » chung h, chun _, chun i
zhong » zlong
hong » long

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 yidan yang ii chang chun h ((zhong zhi) OR (hong (tan OR than))) ;~.
• Adding a wildcard symbol may retrieve word variants: wang yidan yang ii chang chun h ((zhong zhi) or (hong (tan or than))) ;*.