Talvez deva tentar algumas variações de ortografia:
decrease optimum » discrete optimum (Expandir a busca), decrease sodium (Expandir a busca), reverse optimum (Expandir a busca)
optimum training » optimum planting (Expandir a busca), optimum spacing (Expandir a busca)
decrease owing » decrease lodging (Expandir a busca), decrease during (Expandir a busca), decrease in (Expandir a busca)
owing decrease » taping decrease (Expandir a busca), will decrease (Expandir a busca), skins decrease (Expandir a busca)
decrease and » decreases and (Expandir a busca), decrease in (Expandir a busca), decrease of (Expandir a busca)
decreases to » decreases t (Expandir a busca), decreases mtor (Expandir a busca), decreases the (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 owing decrease optimum training ) OR ( decrease AND decreases to decrease ))~.
• As palavras AND, OR e NOT pode ocasionar problemas na busca; tente utilizar as aspas: "(( decrease owing decrease optimum training ) OR ( decrease and decreases to decrease ))~".
• Adicionar um caractere curinga pode recuperar variações da palavra buscada: (( decrease owing decrease optimum training ) OR ( decrease and decreases to decrease ))*.