Talvez deva tentar algumas variações de ortografia:
decrease their » decrease the (Expandir a busca), increase their (Expandir a busca), decreases the (Expandir a busca)
risk decrease » risk decreases (Expandir a busca), risk increase (Expandir a busca), break decrease (Expandir a busca)
decrease risk » decreased risk (Expandir a busca), increase risk (Expandir a busca), decrease in (Expandir a busca)
their mastery » the mastery (Expandir a busca), their masses (Expandir a busca), their markers (Expandir a busca)
decrease not » decrease of (Expandir a busca), decrease akt (Expandir a busca), decrease at (Expandir a busca)
not decrease » not increase (Expandir a busca), and decrease (Expandir a busca), the decrease (Expandir a busca)
decrease to » decreased to (Expandir a busca), decrease toc (Expandir a busca), decrease 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 to decrease NOT decrease ) OR ( decrease risk decrease their mastery ))~.
• As palavras AND, OR e NOT pode ocasionar problemas na busca; tente utilizar as aspas: "(( decrease to decrease not decrease ) OR ( decrease risk decrease their mastery ))~".
• Adicionar um caractere curinga pode recuperar variações da palavra buscada: (( decrease to decrease not decrease ) OR ( decrease risk decrease their mastery ))*.