Perhaps you should try some spelling variations:
wang yidan » wang yan
yang yang » wang yan
wang yang » wang yan, wang liang, wang yanling
tan yang » dan yang, tan ying, tan yong
hua tan » hua ban, huan t'an
li wang » l wang, li gang, li zhang
li wing » li ying, li bing, li ning
hair » hairi, chair, air

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: ((((yang yang) OR (wang yang))) OR (wang yidan)) wang hua tan yang ((li wang) OR (li wing)) hair ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((yang yang) or (wang yang))) or (wang yidan)) wang hua tan yang ((li wang) OR (li wing)) hair ;~".
• Adding a wildcard symbol may retrieve word variants: ((((yang yang) or (wang yang))) or (wang yidan)) wang hua tan yang ((li wang) OR (li wing)) hair ;*.