Perhaps you should try some spelling variations:
gene yang » gene bank
dong sign » dong sin, among sign, dong bin
dong cao » dong xiao, dan cao, dong nan
yang lin » yang jin, wang lin, yang li
zong ghi » hong ghi, zong he
zheng he » cheng hei, zheng lei, zheng yu
dong di » dong sin
a gene » a genre, a gender, a gentle
ya a » a a, y a, ye 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 cao) or (dong di))) or (dong sign)) ya a gene yang lin ((zong ghi) or (zheng he)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((dong cao) OR (dong di))) OR (dong sign)) ya a gene yang lin ((zong ghi) OR (zheng he)) ;.
• Adding a wildcard symbol may retrieve word variants: ((((dong cao) or (dong di))) or (dong sign)) ya a gene yang lin ((zong ghi) or (zheng he)) ;*.