Perhaps you should try some spelling variations:
gene yang » gene bank
zhang zhi » zhong zhi, wang zhi, zhang wei
yang jun » yang jui, pang jun, yang jin
yang yi » yang di, yang xi, yang jui
yan yi » tan yi, yin yi
yan zi » yan zhi, yuan zi, ban zi
a gene » a genre, a gender, a gentle
hong g » hong ng, hong w, hong 7
wang » wing, wan, lang

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 ((((yan yi) OR (yang yi))) OR (yan zi)) a gene yang jun ((hong g) OR (zhang zhi)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang ((((yan yi) or (yang yi))) or (yan zi)) a gene yang jun ((hong g) or (zhang zhi)) ;*.