Talvez deva tentar algumas variações de ortografia:
operating procedures » operating procedure (Expandir a busca)
decreased operating » increase operating (Expandir a busca), decrease cooperation (Expandir a busca)
decrease taping » decrease walking (Expandir a busca), decrease during (Expandir a busca), decrease owing (Expandir a busca)
taping decrease » training decreases (Expandir a busca)
and decreased » and decreases (Expandir a busca), and increased (Expandir a busca)
decrease and » decreases and (Expandir a busca), decrease of (Expandir a busca), decrease the (Expandir a busca)
in decrease » in decreased (Expandir a busca), on decrease (Expandir a busca), pain 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 AND decreased operating procedures ) OR ( decrease taping decrease in decrease ))~.
• As palavras AND, OR e NOT pode ocasionar problemas na busca; tente utilizar as aspas: "(( decrease and decreased operating procedures ) OR ( decrease taping decrease in decrease ))~".
• Adicionar um caractere curinga pode recuperar variações da palavra buscada: (( decrease and decreased operating procedures ) OR ( decrease taping decrease in decrease ))*.