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 jun, ying jin, shang jin
yang jie » yang di, yang jui, yang xi
hong shu » cong shu, tong shui, wong shiu

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 jie)) hong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong nana yala human gene ((yang jin) OR (yang jie)) hong shu ;.
• Adding a wildcard symbol may retrieve word variants: dong nana yala human gene ((yang jin) or (yang jie)) hong shu ;*.