Perhaps you should try some spelling variations:
gene bank » gene banks, one bank, genomen bank
wang yao » wang yan, yang yao, gang yao
yao yang » yang yang
kim song » kim young, kim eung
yang xi » yang di, yang yi, yang jui
xi gene » i gene, iii gene
li song » li cong, li rong, jie song

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 yang xi gene bank ((li song) or (kim song)) ghi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yao yang xi gene bank ((li song) OR (kim song)) ghi ;.
• Adding a wildcard symbol may retrieve word variants: wang yao yang xi gene bank ((li song) or (kim song)) ghi ;*.