Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
yang wang » yang yang, yan wang, yang guang
hua gene » human gene, hua ren, hy5 gene
yang jin » yang jie, yang jun, ying jin
non same » non state, non frame, non sales
yang xi » yang yi, yang jui
a gene » a genre, a gender, a gentle

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