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 their » decrease the (Expandir a busca), increase their (Expandir a busca), decreases the (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), to decrease (Expandir a busca)
in decrease » in decreased (Expandir a busca), on decrease (Expandir a busca), pain decrease (Expandir a busca)

Você pode obter mais resultados ajustando o argumento de busca.

• Remover as aspas pode possibilitar buscas mais amplas: (( decrease in decrease their preprocessing ) OR ( decrease may decrease NOT decrease ))*.