Talvez deva tentar algumas variações de ortografia:
estimation algorithms » optimization algorithms (Expandir a busca), optimization algorithm (Expandir a busca), approximation algorithms (Expandir a busca)
elasticity detection » activity detection (Expandir a busca), elasticity equations (Expandir a busca)
spectral estimation » section estimation (Expandir a busca), neural estimation (Expandir a busca)
methods computation » networks computation (Expandir a busca), network computation (Expandir a busca)
algorithms of » algorithm of (Expandir a busca), algorithms on (Expandir a busca), algorithms _ (Expandir a busca)
and spectral » and special (Expandir a busca), and spectrum (Expandir a busca)
routine and » routines and (Expandir a busca), routing and (Expandir a busca), routine care (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 spectral estimation algorithms of elasticity detection methods computation~.
• Adicionar um caractere curinga pode recuperar variações da palavra buscada: routine and spectral estimation algorithms of elasticity detection methods computation*.