Talvez deva tentar algumas variações de ortografia:
populations using » formulations using (Expandir a busca), populations and (Expandir a busca)
by populations » by population (Expandir a busca), key populations (Expandir a busca), base populations (Expandir a busca)
coping pitons » coping actions (Expandir a busca)
using coping » using coding (Expandir a busca), using coupling (Expandir a busca), nursing coping (Expandir a busca)
pig program » pg program (Expandir a busca), sig programa (Expandir a busca), bag program (Expandir a busca)
using pig » using peg (Expandir a busca), using pid (Expandir a busca), using pixe (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( by populations using pig program ) OR ( using coping pitons python programming ))*.