Perhaps you should try some spelling variations:
gene yang » gene bank
yang jin » yang jie, yang jun, ying jin
jin ying » li ying
ying shu » ying zhu, cong shu, ying hua
wan yan » wang yan, nan yan, wai yan
a gene » a genre, a gender, a gentle
ya a » a a, y a, ye a
sin » sign, sind, skin

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) or (((dong di) OR (dong sin)))) ya a gene yang jin ying shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wan yan) OR (((dong di) OR (dong sin)))) ya a gene yang jin ying shu ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wan yan) or (((dong di) OR (dong sin)))) ya a gene yang jin ying shu ;*".