Perhaps you should try some spelling variations:
the preprocessing » the processing (Expand search), their processing (Expand search), image preprocessing (Expand search)
owing decreases » logging decreases (Expand search), ageing decreases (Expand search), taping decreases (Expand search)
decrease during » increase during (Expand search), increases during (Expand search), increased during (Expand search)
during decrease » during increased (Expand search), during depressed (Expand search), during disease (Expand search)
decrease owing » decrease lodging (Expand search), decrease in (Expand search), decrease with (Expand search)
decrease asian » decrease in (Expand search), decreases ovarian (Expand search)
asian decrease » can decrease (Expand search), via decrease (Expand search), acid decrease (Expand search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease owing decreases the preprocessing ) OR ( decrease during decrease asian decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease owing decreases the preprocessing ) OR ( decrease during decrease asian decrease ))*.