Talvez deva tentar algumas variações de ortografia:
estimation algorithms » optimization algorithms (Expandir a busca), distribution algorithms (Expandir a busca), optimization algorithm (Expandir a busca)
spectrum estimation » spectrum optimization (Expandir a busca), section estimation (Expandir a busca), spectrum simulation (Expandir a busca)
algorithms and » algorithms _ (Expandir a busca)
and elasticity » and plasticity (Expandir a busca), and electricity (Expandir a busca), of elasticity (Expandir a busca)
elasticity in » plasticity in (Expandir a busca), elasticity and (Expandir a busca), elasticity of (Expandir a busca)
in python » via python (Expandir a busca), _ python (Expandir a busca), of 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 AND spectrum estimation algorithms AND elasticity in python computer~.
• As palavras AND, OR e NOT pode ocasionar problemas na busca; tente utilizar as aspas: "routine AND spectrum estimation algorithms and elasticity in python computer~".
• Adicionar um caractere curinga pode recuperar variações da palavra buscada: routine AND spectrum estimation algorithms and elasticity in python computer*.