Perhaps you should try some spelling variations:
human gene » human genome, human gender, human bone
yao yang » yang yang
hua gene » hua ren, hy5 gene
ying jin » yang jin, jing ji, yang jie
jin ying » li ying
ying sar » using sar, kong sar
a gene » a genre, a gender, a gentle
wang » wing, wan

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

• Performing a fuzzy search may retrieve terms with similar spellings: (wang or lang) yao yang ((((hua gene) OR (a gene))) or (human gene)) ying jin ying sar ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (wang OR lang) yao yang ((((hua gene) OR (a gene))) OR (human gene)) ying jin ying sar ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(wang or lang) yao yang ((((hua gene) OR (a gene))) or (human gene)) ying jin ying sar ;".
• Adding a wildcard symbol may retrieve word variants: (wang or lang) yao yang ((((hua gene) OR (a gene))) or (human gene)) ying jin ying sar ;*.