Talvez deva tentar algumas variações de ortografia:
decrease their » decrease the (Expandir a busca), increase their (Expandir a busca), decreases the (Expandir a busca)
their mastery » the mastery (Expandir a busca), their masses (Expandir a busca), their markers (Expandir a busca)
toc decrease » the decrease (Expandir a busca), not decrease (Expandir a busca), or decrease (Expandir a busca)
decrease toc » decrease the (Expandir a busca), decreased to (Expandir a busca), decrease on (Expandir a busca)
decrease to » decreased to (Expandir a busca), decrease the (Expandir a busca), decrease pro (Expandir a busca)
decrease of » decrease in (Expandir a busca)
of decrease » or decrease (Expandir a busca), not decrease (Expandir a busca), of decree (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( decrease to decrease of decrease ) OR ( decrease toc decrease their mastery ))~.