Perhaps you should try some spelling variations:
further decrease » further increase (Expand search), faster decrease (Expand search), the decrease (Expand search)
decrease further » increase further (Expand search), disease further (Expand search), decrease the (Expand search)
decrease signal » increased signal (Expand search), decrease stigma (Expand search), decrease renal (Expand search)
decreases flow » decreases food (Expand search), decreases blood (Expand search), decreases brown (Expand search)
flow decrease » flow increase (Expand search), to decrease (Expand search), not decrease (Expand search)
decrease risk » decreased risk (Expand search), increase risk (Expand search), decrease in (Expand search)
risk decrease » risk decreases (Expand search), risk increase (Expand search), break 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: "(( decreases flow decrease signal processing ) OR ( decrease further decrease risk decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decreases flow decrease signal processing ) OR ( decrease further decrease risk decrease ))*.