Talvez deva tentar algumas variações de ortografia:
defense learning » defense planning (Expandir a busca), deleuze learning (Expandir a busca), defense training (Expandir a busca)
learning object » learning objects (Expandir a busca)
decrease ratio » decreased ratio (Expandir a busca), decrease at (Expandir a busca), decreased rate (Expandir a busca)
ratio decrease » rate decrease (Expandir a busca), rapid decrease (Expandir a busca), ratio increase (Expandir a busca)
decrease and » decreases and (Expandir a busca), decrease in (Expandir a busca), decrease the (Expandir a busca)
decrease of » decrease in (Expandir a busca)
of decrease » or decrease (Expandir a busca), not decrease (Expandir a busca), to decrease (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: (( decrease of decrease ratio decrease ) OR ( decrease AND defense learning object ))~.
• As palavras AND, OR e NOT pode ocasionar problemas na busca; tente utilizar as aspas: "(( decrease of decrease ratio decrease ) OR ( decrease and defense learning object ))~".
• Adicionar um caractere curinga pode recuperar variações da palavra buscada: (( decrease of decrease ratio decrease ) OR ( decrease and defense learning object ))*.