Talvez deva tentar algumas variações de ortografia:
requesting transportation » housing transportation (Expandir a busca), testing transformation (Expandir a busca)
transportation system » transportation systems (Expandir a busca), transport system (Expandir a busca)
algorithm requesting » algorithm using (Expandir a busca), algoritmo request (Expandir a busca)
python programming » math programming (Expandir a busca)
programming and » programming _ (Expandir a busca), programming model (Expandir a busca)
and algorithm » and algorithms (Expandir a busca), an algorithm (Expandir a busca), bound algorithm (Expandir a busca)
system python » system method (Expandir a busca), system action (Expandir a busca)
using python » usando python (Expandir a busca), in python (Expandir a busca), using paths (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Caso esteja tentando utilizar os operadores booleanos, deve escrevê-los em Letras MAIÚSCULAS: using python programming AND algorithm requesting transportation system python computer~.
• Adicionar um caractere curinga pode recuperar variações da palavra buscada: using python programming and algorithm requesting transportation system python computer*.