Perhaps you should try some spelling variations:
decrease relapsing » decrease replacing (Expand search)
decrease faster » decrease after (Expand search), decrease further (Expand search), decreased after (Expand search)
faster decrease » rate decrease (Expand search)
relapsing after » relapsing fever (Expand search), relapse after (Expand search)
decrease that » decrease the (Expand search), decrease at (Expand search), decrees that (Expand search)
that decrease » that increase (Expand search), that increases (Expand search), not decrease (Expand search)
in decrease » in decreased (Expand search), on decrease (Expand search), pain 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: "(( decrease in decrease faster decrease ) OR ( decrease that decrease relapsing after ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease in decrease faster decrease ) OR ( decrease that decrease relapsing after ))*.