Perhaps you should try some spelling variations:
decrease response » decreased response (Expand search), increased response (Expand search), increases response (Expand search)
decrease drugs » disease drugs (Expand search), release drugs (Expand search), increase drug (Expand search)
drugs decrease » drugs release (Expand search)
decrease actor » decrease after (Expand search), decreased after (Expand search), decreases motor (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)
actor object » action object (Expand search), alter object (Expand search), actor subjects (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 response decrease the decrease ) OR ( decrease drugs decrease actor object ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease response decrease the decrease ) OR ( decrease drugs decrease actor object ))*.