Perhaps you should try some spelling variations:
gene yang » gene bank
yang yang » wang yang, wang yan
yuan tun » yuan ting, man tun, yuan hui
tun dato » ting dato, hon dato
dato hua » dato hj, dato ku
hua gene » human gene, a gene, hua ren
wong siu » wong shiu, kong siu, wong sau

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

• Performing a fuzzy search may retrieve terms with similar spellings: yuan tun dato hua gene yang yang ((hong seo) or (wong siu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yuan tun dato hua gene yang yang ((hong seo) OR (wong siu)) ;*.