Perhaps you should try some spelling variations:
decrease relapse » decrease release (Expand search), increases relapse (Expand search), decrease renal (Expand search)
decrease risk » decreased risk (Expand search), increase risk (Expand search), decrease in (Expand search)
that decrease » that increase (Expand search), that increases (Expand search), not decrease (Expand search)
risk decrease » risk decreases (Expand search), risk increase (Expand search), break decrease (Expand search)
decrease toc » decrease of (Expand search), decrease the (Expand search), decreased to (Expand search)
decrees that » devices that (Expand search), trees that (Expand search)
toc decrees » that decrees (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 toc decrees that decrease ) OR ( decrease risk decrease relapse after ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease toc decrees that decrease ) OR ( decrease risk decrease relapse after ))*.