Perhaps you should try some spelling variations:
hua brain » human brain, a brain, hua ban
dong sink » dong sin, dong ping
brain yan » brain gain, brain a
dong sign » dong sin, among sign
dong bin » dong sin, dann bin
jiu dong » jiu cong, kim dong, liu yong
dong di » dong sin
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 bin) or (dong di))) or (dong sink)) ya hua brain yan jiu dong sign ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((dong bin) OR (dong di))) OR (dong sink)) ya hua brain yan jiu dong sign ;.
• Adding a wildcard symbol may retrieve word variants: ((((dong bin) or (dong di))) or (dong sink)) ya hua brain yan jiu dong sign ;*.