Talvez deva tentar algumas variações de ortografia:
decrease shadowing » decrease owing (Expandir a busca), decrease following (Expandir a busca), decreases shedding (Expandir a busca)
shadowing effect » shadowing effects (Expandir a busca), shading effect (Expandir a busca), shading effects (Expandir a busca)
decrease during » increase during (Expandir a busca), increases during (Expandir a busca), increased during (Expandir a busca)
during decrease » during increased (Expandir a busca), during depressed (Expandir a busca), during disease (Expandir a busca)
decrease pain » decreases pain (Expandir a busca), decrease in (Expandir a busca), decreased brain (Expandir a busca)
pain decrease » can decrease (Expandir a busca), strain decrease (Expandir a busca), taping decrease (Expandir a busca)
decrease to » decreased to (Expandir a busca), decrease toc (Expandir a busca), decrease the (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( decrease to decrease during decrease ) OR ( decrease pain decrease shadowing effect ))~.