Talvez deva tentar algumas variações de ortografia:
decrease litter » increased litter (Expandir a busca), decrease after (Expandir a busca), decreases liver (Expandir a busca)
litter decrease » faster decrease (Expandir a busca), life decrease (Expandir a busca)
decrease naming » decrease walking (Expandir a busca), decrease during (Expandir a busca), decrease owing (Expandir a busca)
naming objects » leaming objects (Expandir a busca), among objects (Expandir a busca), talking objects (Expandir a busca)
decrease its » decreases its (Expandir a busca), decrease with (Expandir a busca), increase its (Expandir a busca)
its decrease » with decrease (Expandir a busca), nts decreases (Expandir a busca), to decrease (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.

• Remover as aspas pode possibilitar buscas mais amplas: (( decrease its decrease litter decrease ) OR ( decrease in decrease naming objects ))~.