Talvez deva tentar algumas variações de ortografia:
decrease optimum » discrete optimum (Expandir a busca), decrease sodium (Expandir a busca), reverse optimum (Expandir a busca)
decrease strain » increase strain (Expandir a busca), decreases pain (Expandir a busca), decreased brain (Expandir a busca)
strain decrease » stress decreases (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)
optimum timing » optimal timing (Expandir a busca), optimum training (Expandir a busca), optimum sowing (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( decrease strain decrease optimum timing ) OR ( decrease AND decrease during decrease ))~.