Perhaps you should try some spelling variations:
yala human » data human, malawi human
human gene » human genome, human gender, human bone
dong nana » dong nan, dong yang
nana yala » nana yaa
yang jin » yang jie, yang jun, ying jin
yang jui » yang judy, yang yi
yang xi » yang yi
hong 7 » hong w, hong a, hong g

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

• Performing a fuzzy search may retrieve terms with similar spellings: dong nana yala human gene ((yang jin) or (((((yang jui) or (yang di))) or (yang xi)))) hong 7 ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong nana yala human gene ((yang jin) OR (((((yang jui) OR (yang di))) OR (yang xi)))) hong 7 ;.
• Adding a wildcard symbol may retrieve word variants: dong nana yala human gene ((yang jin) or (((((yang jui) or (yang di))) or (yang xi)))) hong 7 ;*.