Talvez deva tentar algumas variações de ortografia:
validation ofalgorithms » calibration algorithms (Expandir a busca)
spatial validation » spatial variation (Expandir a busca), spatial navigation (Expandir a busca), spatial variations (Expandir a busca)
main activity » human activity (Expandir a busca), dairy activity (Expandir a busca), abc activity (Expandir a busca)
routine and » routines and (Expandir a busca), routing and (Expandir a busca), routine care (Expandir a busca)
in activity » _ activity (Expandir a busca), brain activity (Expandir a busca), high activity (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.

• Fazer uma busca fuzzy pode resultar em termos de grafias semelhantes: routine and spatial validation ofalgorithms ((in activity) OR (main activity)) and python computer~.
• Caso esteja tentando utilizar os operadores booleanos, deve escrevê-los em Letras MAIÚSCULAS: routine AND spatial validation ofalgorithms ((in activity) OR (main activity)) AND python computer.
• As palavras AND, OR e NOT pode ocasionar problemas na busca; tente utilizar as aspas: "routine and spatial validation ofalgorithms ((in activity) OR (main activity)) and python computer".
• Adicionar um caractere curinga pode recuperar variações da palavra buscada: routine and spatial validation ofalgorithms ((in activity) OR (main activity)) and python computer*.