Perhaps you should try some spelling variations:
wang yidan » wang yan
wang ban » wang yan, wang dan, wang yang
yang yue » wang yue, yang yun, yang jui
tan yang » dan yang, tan ying, tan yong
yi chang » ying chang, jin chang, vii chang
ii chang » vii chang, ii changes, iii change
yue tan » yue man, yue wang

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 ban) OR (wang yidan)) yang yue tan yang ((yi chang) OR (ii chang)) (hai OR hadi) ;~.
• Adding a wildcard symbol may retrieve word variants: ((wang ban) or (wang yidan)) yang yue tan yang ((yi chang) or (ii chang)) (hai or hadi) ;*.