Perhaps you should try some spelling variations:
gene yang » gene bank
wang yao » wang yan, yang yao, wang tao
gang yao » yang yao, wang yan, ganga ya
jie song » jae song, jin song, li song
kim song » kim young, kim eung
yang xi » yang di, yang yi, yang jui
xi gene » i gene, iii gene

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang yao) OR (gang yao)) yang xi gene yang ((jie song) or (kim song)) ghi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang yao) OR (gang yao)) yang xi gene yang ((jie song) OR (kim song)) ghi ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yao) OR (gang yao)) yang xi gene yang ((jie song) or (kim song)) ghi ;".
• Adding a wildcard symbol may retrieve word variants: ((wang yao) OR (gang yao)) yang xi gene yang ((jie song) or (kim song)) ghi ;*.