Talvez deva tentar algumas variações de ortografia:
extraction algorithm » detection algorithm (Expandir a busca), estimation algorithms (Expandir a busca), selection algorithm (Expandir a busca)
python programming » math programming (Expandir a busca)
programming python » programming method (Expandir a busca), programmation python (Expandir a busca), programacao python (Expandir a busca)
marine extraction » marine extractive (Expandir a busca), rice extraction (Expandir a busca), alkaline extraction (Expandir a busca)
algorithm usando » algoritmo usando (Expandir a busca), algorithm and (Expandir a busca), algorithm hand (Expandir a busca)
and marine » and machine (Expandir a busca), and maringa (Expandir a busca), and maize (Expandir a busca)
java and » java card (Expandir a busca), nova and (Expandir a busca), java 3d (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: java AND marine extraction algorithm usando python programming python computer~.
• Adicionar um caractere curinga pode recuperar variações da palavra buscada: java and marine extraction algorithm usando python programming python computer*.