Talvez deva tentar algumas variações de ortografia:
direct sampling » direct selling (Expandir a busca), direct coupling (Expandir a busca), insect sampling (Expandir a busca)
sampling method » sampling methods (Expandir a busca)
python program » action program (Expandir a busca)
python coding » action coding (Expandir a busca), python code (Expandir a busca)
coding python » codigo python (Expandir a busca), codigos python (Expandir a busca), using python (Expandir a busca)
method python » method method (Expandir a busca), python python (Expandir a busca)
coder python » codigo python (Expandir a busca), compra python (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( coder python coding python program ) OR ( direct sampling method python programming ))~.