Perhaps you should try some spelling variations:
gene yang » gene bank
wang yang » wang yan, wang liang, wang yanling
yan yang » yang yang, yao yang, dan yang
jui gene » i gene, iii gene, jui meng
song ghi » hong ghi, song shin
yang li » yang lin, yang di, yang xi
song li » song lina, dong liu, song jin

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: wang ((yan yang) OR (wang yang)) jui gene yang li ((song ghi) OR (song li)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((yan yang) or (wang yang)) jui gene yang li ((song ghi) OR (song li)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang ((yan yang) or (wang yang)) jui gene yang li ((song ghi) OR (song li)) ;*.