Talvez deva tentar algumas variações de ortografia:
problem representation » process representation (Expandir a busca), power representation (Expandir a busca), rules representation (Expandir a busca)
representation method » representation methods (Expandir a busca), representation et (Expandir a busca), representation the (Expandir a busca)
optimization problem » optimization problems (Expandir a busca), optimization model (Expandir a busca)
pattern optimization » position optimization (Expandir a busca), an optimization (Expandir a busca), based optimization (Expandir a busca)
decrease pattern » crease pattern (Expandir a busca), decrease after (Expandir a busca), case pattern (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Adicionar um caractere curinga pode recuperar variações da palavra buscada: decrease pattern optimization problem representation method*.