Perhaps you should try some spelling variations:
alan human » asian human, japan human, than human
human gene » human genome, human gender, human bone
dong hua » wang hua, tong hui, dong hoi
hua alan » hua ban, oda alan
ying jin » yang jin, jing ji, yang jie
hong shu » cong shu, tong shui, wong shiu
yan jiu » yang jie, yang jin, pang jiu

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

• Performing a fuzzy search may retrieve terms with similar spellings: dong hua alan human gene ((yan jiu) or (ying jin)) hong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong hua alan human gene ((yan jiu) OR (ying jin)) hong shu ;.
• Adding a wildcard symbol may retrieve word variants: dong hua alan human gene ((yan jiu) or (ying jin)) hong shu ;*.