Perhaps you should try some spelling variations:
yang yang » wang yang, wang yan
gene bank » gene banks, one bank, genomen bank
tan yang » dan yang, tan ying, tan yong
iii gene » iii rene, iii gender, iii genome
bank aid » band aid, bank card, bank adb
aid hong » aid how, aid homi, aid non
hong ghi » zhong zhi, hong g, hong hai

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

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