Perhaps you should try some spelling variations:
the preprocessing » the processing (Expand search), their processing (Expand search), image preprocessing (Expand search)
during depressed » during depressive (Expand search), during repressive (Expand search), feeling depressed (Expand search)
decrease during » increase during (Expand search), increases during (Expand search), increased during (Expand search)
depressed human » expressed human (Expand search), depressed women (Expand search), depleted human (Expand search)
decrease owing » decrease lodging (Expand search), decrease in (Expand search), decrease with (Expand search)
owing decrease » taping decrease (Expand search), will decrease (Expand search), skins decrease (Expand search)
human decrease » human deceased (Expand search), human increase (Expand search), human disease (Expand search)
decrease the » decreases the (Expand search), decrease in (Expand search), decrease of (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 decrease the preprocessing ) OR ( decrease during depressed human decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease owing decrease the preprocessing ) OR ( decrease during depressed human decrease ))*.