Perhaps you should try some spelling variations:
dong yang » dong hoang, wang yang, yang yang
gene yang » gene bank
yong yan » yang yang, ying yang, yong yoon
hua gene » human gene, a gene, hua ren
yang jin » yang jie, yang jun, ying jin
wong sau » wong sam, wong siu, wong shiu
won sau » wong sam, wong siu

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

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