Perhaps you should try some spelling variations:
wang liang » wang yang
human gene » human genome, human gender, human bone
gene yang » gene bank
zhang zhi » zhong zhi, wang zhi, zhang wei
ya human » a human, das human, 2 human
yang min » yang mind, yang jin, tang min
hong ghi » zhong zhi, hong g, hong hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang liang) or (wang yan)) ya human gene yang min ((hong ghi) or (zhang zhi)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang liang) OR (wang yan)) ya human gene yang min ((hong ghi) OR (zhang zhi)) ;.
• Adding a wildcard symbol may retrieve word variants: ((wang liang) or (wang yan)) ya human gene yang min ((hong ghi) or (zhang zhi)) ;*.