Perhaps you should try some spelling variations:
gene yang » gene bank
hua gene » human gene, a gene, hua ren
wong sau » wong sam, wong shiu, wong lai
wong siu » wong shiu, kong siu, wong siew
wan yan » wang yan, nan yan, wai yan
yan tan » tan tan, yan clan, yan guan
tan hua » tuan hua, wang hua, tan chia
yang ji » yang jui, yang jie, yang jin
won sau » wong sam

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

• Performing a fuzzy search may retrieve terms with similar spellings: wan yan tan hua gene yang ji ((((won sau) OR (wong sau))) or (wong siu)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wan yan tan hua gene yang ji ((((won sau) OR (wong sau))) OR (wong siu)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wan yan tan hua gene yang ji ((((won sau) OR (wong sau))) or (wong siu)) ;*".