Perhaps you should try some spelling variations:
wang liang » wang yang
human gene » human genome, human gender, human bone
liang dog » liang dan
gene yang » gene bank
non sales » bond sales, loan sales, non same
yang jin » yang jie, yang jun, ying jin
non sacu » union sacu, non same, non sans

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang liang dog human gene yang jin ((non sacu) or (non sales)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang liang dog human gene yang jin ((non sacu) OR (non sales)) ;*.