Perhaps you should try some spelling variations:
liang liying » jiang liping, liang lilin, liang ying
huang ying » huang jing, huang ting, huang yang
human gene » human genome, human gender, human bone
union sacu » non sacu
gene yang » gene bank
yang jin » yang jie, yang jun, ying jin
non same » non state, non frame, non sales

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 liying) or (huang ying)) human gene yang jin ((union sacu) or (non same)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang ((liang liying) OR (huang ying)) human gene yang jin ((union sacu) OR (non same)) ;.
• Adding a wildcard symbol may retrieve word variants: wang ((liang liying) or (huang ying)) human gene yang jin ((union sacu) or (non same)) ;*.