Perhaps you should try some spelling variations:
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 drugs » disease drugs (Expand search), decrease treg (Expand search), release drugs (Expand search)
drugs decrease » drugs increases (Expand search), drugs release (Expand search)
decrease smart » decreased heart (Expand search), decrease akt (Expand search), decrease at (Expand search)
smart object » smart objects (Expand search), art object (Expand search), art objects (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 AND decrease ) OR ( decrease drugs decrease smart object ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease during depressed AND decrease ) OR ( decrease drugs decrease smart object ))*.