Talvez deva tentar algumas variações de ortografia:
their preprocessing » the preprocessing (Expandir a busca), their processing (Expandir a busca), the reprocessing (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 their » decrease the (Expandir a busca), increase their (Expandir a busca), decreases the (Expandir a busca)
decrease not » decrease of (Expandir a busca), decrease akt (Expandir a busca), decrease at (Expandir a busca)
not decrease » to decrease (Expandir a busca), not increase (Expandir a busca), the decrease (Expandir a busca)
decrease and » decreases and (Expandir a busca), decrease in (Expandir a busca), decrease of (Expandir a busca)
and decrease » and decreases (Expandir a busca), and decreased (Expandir a busca), and increase (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( decrease not decrease their preprocessing ) OR ( decrease and decrease strain decrease ))~.