Perhaps you should try some spelling variations:
decrease decrease » decrease release (Expand search), decreases disease (Expand search), disease decreases (Expand search)
base processual » fase processual (Expand search), lise processual (Expand search), debate processual (Expand search)
that decreased » that decrease (Expand search), the decreased (Expand search), has decreased (Expand search)
decreased base » decreased bone (Expand search), decreased brain (Expand search), decreased risk (Expand search)
decrease after » disease after (Expand search)
decrease that » decrease the (Expand search), decrease at (Expand search), decrees that (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 that decreased base processual ) OR ( decrease _ decrease decrease after ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease that decreased base processual ) OR ( decrease _ decrease decrease after ))*.