Perhaps you should try some spelling variations:
gene bank » gene banks, one bank, genomen bank
bank aid » band aid, bank card, bank adb
aid hong » aid how, aid homi, aid non
hong hai » shang hai, zhong tai, dang hai
yang yi » yang di, yang xi, yang jui
yang ka » yang fan, yang yao
a gene » a genre, a gender, a gentle

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

• Performing a fuzzy search may retrieve terms with similar spellings: dong ((yang yi) or (yang ka)) a gene bank aid hong hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong ((yang yi) OR (yang ka)) a gene bank aid hong hai ;.
• Adding a wildcard symbol may retrieve word variants: dong ((yang yi) or (yang ka)) a gene bank aid hong hai ;*.