Perhaps you should try some spelling variations:
gene yang » gene bank
hua gene » human gene, a gene, hua ren
yang min » yang mind, yang jin, tang min
yang ya » yang yao, yang yi, yang y
yang ka » yang fan, yang yao
hong ng » hong kong, hong jong, hong hong
hong g » hong w, hong 7, hong a

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 ya) or (yang ka)) hua gene yang min ((hong g) OR (hong ng)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong ((yang ya) OR (yang ka)) hua gene yang min ((hong g) OR (hong ng)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "dong ((yang ya) or (yang ka)) hua gene yang min ((hong g) OR (hong ng)) ;".
• Adding a wildcard symbol may retrieve word variants: dong ((yang ya) or (yang ka)) hua gene yang min ((hong g) OR (hong ng)) ;*.