Perhaps you should try some spelling variations:
decrease looping » decrease flooding (Expand search), decrease lodging (Expand search), decrease owing (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)
looping effect » looping effects (Expand search), flooding effect (Expand search), doping effect (Expand search)
decrease rate » decreased rate (Expand search), decreases rate (Expand search), decrease at (Expand search)
rate decrease » rats decreases (Expand search), rate increase (Expand search), to 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 rate decrease drugs decrease ) OR ( decrease AND decrease looping effect ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease rate decrease drugs decrease ) OR ( decrease AND decrease looping effect ))*.