Perhaps you should try some spelling variations:
ying human » being human, using human, ying hua
human gene » human genome, human gender, human bone
ying ying » ying yang, yirong ying, liang ying
liang tan » liang dan, liang sun, wing tan
ran ying » fan ying, tan ying, jin ying
ying tan » wing tan, ying bank, ying yang
yang jin » yang jie, yang jun, ying jin
sar » sara, star, saur

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

• Performing a fuzzy search may retrieve terms with similar spellings: ran ying ying human gene ((((ying tan) or (liang tan))) or (yang jin)) kong sar ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ran ying ying human gene ((((ying tan) OR (liang tan))) OR (yang jin)) kong sar ;.
• Adding a wildcard symbol may retrieve word variants: ran ying ying human gene ((((ying tan) or (liang tan))) or (yang jin)) kong sar ;*.