Perhaps you should try some spelling variations:
wang yidan » wang yan
yidan kai » yuan kai
yang yang » wang yang, wang yan
zhong zhi » hong ghi, zhong tai
zhang zhi » wang zhi, zhang wei, zhang dai
yang jin » yang jie, yang jun, ying jin
kai a » kai fa, ka a
test » text, west
best » west

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wang yidan kai a (test or best) ((yang jin) or (yang yang)) ((zhong zhi) or (zhang zhi)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yidan kai a (test OR best) ((yang jin) OR (yang yang)) ((zhong zhi) OR (zhang zhi)) ;.
• Adding a wildcard symbol may retrieve word variants: wang yidan kai a (test or best) ((yang jin) or (yang yang)) ((zhong zhi) or (zhang zhi)) ;*.