Talvez deva tentar algumas variações de ortografia:
ratio decreased » ratio decrease (Expandir a busca), rats decreased (Expandir a busca), to decreased (Expandir a busca)
decrease ratio » decreased ratio (Expandir a busca), decrease at (Expandir a busca), decreased rate (Expandir a busca)
decreased and » decreases and (Expandir a busca), decrease and (Expandir a busca), decreased in (Expandir a busca)
and decrease » and decreases (Expandir a busca), and decreased (Expandir a busca), and increase (Expandir a busca)
of decrease » or decrease (Expandir a busca), not decrease (Expandir a busca), to decrease (Expandir a busca)
in objects » in object (Expandir a busca), on objects (Expandir a busca), and objects (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( decrease ratio decreased and decrease ) OR ( decrease of decrease in objects ))~.