Perhaps you should try some spelling variations:
decrease decrease » decrease release (Expand search), decreases disease (Expand search), disease decreases (Expand search)
fear diffusion » flair diffusion (Expand search), agar diffusion (Expand search), beam diffusion (Expand search)
decrease after » disease after (Expand search)
increase with » increases with (Expand search)
with decrease » with decreased (Expand search), with deceased (Expand search), with increase (Expand search)
decrease fear » decreased fear (Expand search), decrease fetal (Expand search), decreased heart (Expand search)
decrease pain » decreases pain (Expand search), decrease in (Expand search), decreased brain (Expand search)
pain decrease » can decrease (Expand search), taping decrease (Expand search), brain decreases (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: "(( increase with decrease fear diffusion ) OR ( decrease pain decrease decrease after ))~".
• Adding a wildcard symbol may retrieve word variants: (( increase with decrease fear diffusion ) OR ( decrease pain decrease decrease after ))*.