Perhaps you should try some spelling variations:
increased signal » increased spinal (Expand search), increased airway (Expand search), increased atrial (Expand search)
decrease rapidly » disease rapidly (Expand search), decrease lipid (Expand search)
rapidly decrease » rapid decrease (Expand search), rapid increase (Expand search), taping decrease (Expand search)
rate increased » rate increase (Expand search), are increased (Expand search), have increased (Expand search)
decrease rate » decreased rate (Expand search), decreases rate (Expand search), decrease at (Expand search)

You may be able to get more results by adjusting your search query.

• Removing quotes may allow a broader search: (( decrease rate increased signal processing ) OR ( decrease _ decrease rapidly decrease ))~.