Perhaps you should try some spelling variations:
wang yidan » wang yan
yidan yan » qian yan
yuan wang » yan wang, yuan kang, yuan chang
wang yang » wang yan, wang liang, wang yanling
zhong tai » hong tan, hong hai, zhong zhi
yan yuan » yan guan, fang yuan, nan yan
yang jin » yang jie, yang jun, ying jin
hong ghi » zhong zhi, hong g, hong hai

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 yan yuan wang yang jin ((zhong tai) or (hong ghi)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yidan yan yuan wang yang jin ((zhong tai) OR (hong ghi)) ;.
• Adding a wildcard symbol may retrieve word variants: wang yidan yan yuan wang yang jin ((zhong tai) or (hong ghi)) ;*.