Perhaps you should try some spelling variations:
gene yang » gene bank
wang yang » wang yan, wang liang
min zhong » min hong, tin hong, amin hong
zhong zhi » zhang zhi, hong ghi, zhong tai
yang min » yang mind, yang jin, tang min
yi hua » li hua, ya hua, ying hua
yi hui » li hui

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) OR (wang yanling)) ((yi hua) OR (yi hui)) gene yang min zhong zhi ;~.
• Adding a wildcard symbol may retrieve word variants: ((wang yang) or (wang yanling)) ((yi hua) or (yi hui)) gene yang min zhong zhi ;*.