Talvez deva tentar algumas variações de ortografia:
appropriation algorithm » approximation algorithms (Expandir a busca), propagation algorithm (Expandir a busca), approximative algorithms (Expandir a busca)
data appropriation » and appropriation (Expandir a busca), land appropriation (Expandir a busca), space appropriation (Expandir a busca)
elasticity theory » activity theory (Expandir a busca)
and elasticity » and plasticity (Expandir a busca), and electricity (Expandir a busca), of elasticity (Expandir a busca)
algorithm and » algorithms and (Expandir a busca), algorithm _ (Expandir a busca), algorithm to (Expandir a busca)
theory python » the python (Expandir a busca), theory method (Expandir a busca)
routine and » routines and (Expandir a busca), routing and (Expandir a busca), route and (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 AND data appropriation algorithm AND elasticity theory python computer~.
• Adicionar um caractere curinga pode recuperar variações da palavra buscada: routine and data appropriation algorithm and elasticity theory python computer*.