Talvez deva tentar algumas variações de ortografia:
decrease sound » decrease sod (Expandir a busca), decrease soon (Expandir a busca), decrease and (Expandir a busca)
decrease risk » decreased risk (Expandir a busca), increase risk (Expandir a busca), decrease in (Expandir a busca)
risk decrease » risk decreases (Expandir a busca), risk increase (Expandir a busca), break decrease (Expandir a busca)
sound objects » and objects (Expandir a busca), sound effects (Expandir a busca), boundary objects (Expandir a busca)
decrease toc » decrease of (Expandir a busca), decrease the (Expandir a busca), decreased to (Expandir a busca)
toc decrease » to decrease (Expandir a busca), the decrease (Expandir a busca), not decrease (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( decrease toc decrease risk decrease ) OR ( decrease NOT decrease sound objects ))~.