Talvez deva tentar algumas variações de ortografia:
extraction optimization » production optimization (Expandir a busca), selection optimization (Expandir a busca), operational optimization (Expandir a busca)
optimization algorithms » approximation algorithms (Expandir a busca)
data extraction » dna extraction (Expandir a busca), dental extraction (Expandir a busca), phase extraction (Expandir a busca)
elasticity and » plasticity and (Expandir a busca), electricity and (Expandir a busca), elasticity of (Expandir a busca)
algorithms in » algorithms and (Expandir a busca), algorithms _ (Expandir a busca), algorithms to (Expandir a busca)
in elasticity » and elasticity (Expandir a busca), of elasticity (Expandir a busca), soil elasticity (Expandir a busca)
routine data » routine at (Expandir a busca), online data (Expandir a busca), routine and (Expandir a busca)
and python » in python (Expandir a busca), usando python (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: routine data extraction optimization algorithms in elasticity AND python computer~.
• Adicionar um caractere curinga pode recuperar variações da palavra buscada: routine data extraction optimization algorithms in elasticity and python computer*.