Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
gene yang » gene bank
zhong zhi » zhang zhi, hong ghi, zhong tai
yang fan » zhang fan, yang dean, yang jin
hua gene » human gene, a gene, hua ren
wong yue » wang yue
fan hua » tan hua, wang hua, tuan hua

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

• Performing a fuzzy search may retrieve terms with similar spellings: yang yang fan hua gene yang di ((zhong zhi) or (((hong yu) OR (wong yue)))) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yang yang fan hua gene yang di ((zhong zhi) OR (((hong yu) OR (wong yue)))) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "yang yang fan hua gene yang di ((zhong zhi) or (((hong yu) OR (wong yue)))) ;".
• Adding a wildcard symbol may retrieve word variants: yang yang fan hua gene yang di ((zhong zhi) or (((hong yu) OR (wong yue)))) ;*.