Perhaps you should try some spelling variations:
human gene » human genome, human gender, human bone
wang yang » wang liang, wang yanling
gene yang » gene bank
ya human » a human, das human, 2 human
yang lee » yang jie, kong lee, wang lei
lee tong » lee jeong, lee kiong, lee sang
tong hui » wang hui

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) OR (wang yan)) ya human gene yang lee tong hui ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yang) OR (wang yan)) ya human gene yang lee tong hui ;".
• Adding a wildcard symbol may retrieve word variants: ((wang yang) OR (wang yan)) ya human gene yang lee tong hui ;*.