Talvez deva tentar algumas variações de ortografia:
estimation algorithms » optimization algorithms (Expandir a busca), optimization algorithm (Expandir a busca), approximation algorithms (Expandir a busca)
classifier detection » classifier selection (Expandir a busca), classifiers selection (Expandir a busca), carrier detection (Expandir a busca)
methods computation » networks computation (Expandir a busca), network computation (Expandir a busca)
neural estimation » neural stimulation (Expandir a busca), delay estimation (Expandir a busca), energy estimation (Expandir a busca)
algorithms in » algorithms and (Expandir a busca), algorithms _ (Expandir a busca), algorithm _ (Expandir a busca)
in classifier » knn classifier (Expandir a busca), of classifier (Expandir a busca), of classifiers (Expandir a busca)
routine and » routines and (Expandir a busca), routing and (Expandir a busca), routine care (Expandir a busca)
and neural » and natural (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 neural estimation algorithms in classifier detection methods computation~.
• Adicionar um caractere curinga pode recuperar variações da palavra buscada: routine and neural estimation algorithms in classifier detection methods computation*.