Talvez deva tentar algumas variações de ortografia:
populations using » formulations using (Expandir a busca), populations and (Expandir a busca)
and populations » and population (Expandir a busca), wild populations (Expandir a busca), animal populations (Expandir a busca)
coding pitons » loading pistons (Expandir a busca)
from program » from protium (Expandir a busca), from problem (Expandir a busca), gym program (Expandir a busca)
using coding » using coping (Expandir a busca), using coating (Expandir a busca), using cooking (Expandir a busca)
using from » housing from (Expandir a busca), nursing from (Expandir a busca), causing from (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( and populations using from program ) OR ( using coding pitons python programming ))*.