Talvez deva tentar algumas variações de ortografia:
decreases owing » decrease owing (Expandir a busca), decreases during (Expandir a busca), decreases in (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)
owing objects » moving objects (Expandir a busca), using objects (Expandir a busca), flying objects (Expandir a busca)
decrease and » decreases and (Expandir a busca), decrease in (Expandir a busca), decrease of (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( decrease _ decrease risk decrease ) OR ( decrease and decreases owing objects ))~.