Perhaps you should try some spelling variations:
wang liang » wang yang
liang ying » liang liying, huang ying, zhang ying
hua gene » human gene, a gene, hy5 gene
ying jin » yang jin, jing ji, yang jie
non sacu » union sacu, non sans
non same » non state, non frame, non sales
hua ren » hua chen

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 liang ying ((hua gene) OR (hua ren)) ying jin ((non sacu) OR (non same)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang liang ying ((hua gene) or (hua ren)) ying jin ((non sacu) OR (non same)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang liang ying ((hua gene) or (hua ren)) ying jin ((non sacu) OR (non same)) ;*.