Perhaps you should try some spelling variations:
gene yang » gene bank
lang yan » wang yang, zhang yan, yang yang
hua gene » human gene, a gene, hua ren
yang jun » yang jui, pang jun, yang jin
wong sau » wong sam, wong siu, wong shiu
yan hua » tan hua, ya hua, wang hua
sar » sara, star, saur

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: ((lang yan) OR (wang yan)) yan hua gene yang jun ((wong sau) OR (kong sar)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((lang yan) or (wang yan)) yan hua gene yang jun ((wong sau) OR (kong sar)) ;~".
• Adding a wildcard symbol may retrieve word variants: ((lang yan) or (wang yan)) yan hua gene yang jun ((wong sau) OR (kong sar)) ;*.