Perhaps you should try some spelling variations:
gene yang » gene bank
wing yan » wang yan, wing ian, wing tan
yan yang » yang yang, yao yang, dan yang
yang hua » wang hua, yang hui, ying hua
hua gene » human gene, a gene, hua ren
li cong » li rong, jiu cong
li song » li rong, kim song, 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: wing yan yang hua gene yang ((li cong) or (li song)) ghi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wing yan yang hua gene yang ((li cong) OR (li song)) ghi ;.
• Adding a wildcard symbol may retrieve word variants: wing yan yang hua gene yang ((li cong) or (li song)) ghi ;*.