Talvez deva tentar algumas variações de ortografia:
increased safety » increase safety (Expandir a busca), increasing safety (Expandir a busca), increased severity (Expandir a busca)
safety practices » daily practices (Expandir a busca)
toc increased » to increased (Expandir a busca), of increased (Expandir a busca), the increased (Expandir a busca)
decrease toc » decrease of (Expandir a busca), decrease the (Expandir a busca), decreased to (Expandir a busca)
decrease may » decrease at (Expandir a busca), decrease by (Expandir a busca), decrease human (Expandir a busca)
may decrease » may increase (Expandir a busca), can decrease (Expandir a busca), and decrease (Expandir a busca)
decrease to » decreased to (Expandir a busca), decrease the (Expandir a busca), decrease pro (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( decrease toc increased safety practices ) OR ( decrease to decrease may decrease ))~.