Perhaps you should try some spelling variations:
wang yidan » wang yan
yidan yang » dan yang, yin yang
zhong tai » hong tan, hong hai, zhong zhi
li wang » l wang, li wing, li zhang
li gang » liu gang, ii gang, i gang
jing ji » ying jin
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 ((li wang) OR (li gang)) jing ji ((zhong tai) OR (hong w)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yidan yang ((li wang) OR (li gang)) jing ji ((zhong tai) or (hong w)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yidan yang ((li wang) OR (li gang)) jing ji ((zhong tai) or (hong w)) ;*.