Perhaps you should try some spelling variations:
human gene » human genome, human gender, human bone
wang yang » wang yan, wang liang, wang yanling
yang jin » yang jun, ying jin, shang jin
yang jie » yang di, yang jui, yang xi
yang yi » yang di, yang xi, yang jui
a gene » a genre, a gender, a gentle
hai » hadi, haji, hari

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yang yi ((a gene) or (human gene)) ((yang jin) or (yang jie)) dang hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yang yi ((a gene) OR (human gene)) ((yang jin) OR (yang jie)) dang hai ;.
• Adding a wildcard symbol may retrieve word variants: wang yang yi ((a gene) or (human gene)) ((yang jin) or (yang jie)) dang hai ;*.