Perhaps you should try some spelling variations:
depressed decrease » depressed areas (Expand search), repressors decreased (Expand search)
decrease processes » disease processes (Expand search), defense processes (Expand search), decay processes (Expand search)
decrease learning » increases learning (Expand search), decreases weaning (Expand search), defense learning (Expand search)
during depressed » during depressive (Expand search), during repressive (Expand search), feeling depressed (Expand search)
learning courses » learning course (Expand search), training courses (Expand search)
decrease during » increase during (Expand search), increases during (Expand search), increased during (Expand search)
decrease the » decreases the (Expand search), decrease in (Expand search), decrease of (Expand search)
the decrease » to decrease (Expand search), and decrease (Expand search), _ 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 during depressed decrease processes ) OR ( decrease the decrease learning courses ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease during depressed decrease processes ) OR ( decrease the decrease learning courses ))*.