Talvez deva tentar algumas variações de ortografia:
programming complement » programming computer (Expandir a busca), programming computers (Expandir a busca), programming computing (Expandir a busca)
methods computation » networks computation (Expandir a busca), network computation (Expandir a busca)
validation methods » validation method (Expandir a busca), valuation methods (Expandir a busca), calibration methods (Expandir a busca)
math programming » fetal programming (Expandir a busca)
logic validation » model validation (Expandir a busca), to validation (Expandir a busca), of validation (Expandir a busca)
algorithm and » algorithms and (Expandir a busca), algorithm _ (Expandir a busca), algorithm to (Expandir a busca)
using math » using batch (Expandir a busca), using paths (Expandir a busca), using many (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: using math programming complement algorithm AND logic validation methods computation~.
• Adicionar um caractere curinga pode recuperar variações da palavra buscada: using math programming complement algorithm and logic validation methods computation*.