Perhaps you should try some spelling variations:
of preprocessing » of reprocessing (Expand search), by preprocessing (Expand search), or reprocessing (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)
decrease its » decreases its (Expand search), decrease with (Expand search), decrease in (Expand search)
its decrease » with decrease (Expand search), nts decreases (Expand search), to decrease (Expand search)
depressed in » repressed in (Expand search), depressed and (Expand search), expressed in (Expand search)
decrease of » decrease in (Expand search)
in decrease » in decreased (Expand search), on decrease (Expand search), pain 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 its decrease of preprocessing ) OR ( decrease during depressed in decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease its decrease of preprocessing ) OR ( decrease during depressed in decrease ))*.