Perhaps you should try some spelling variations:
decrease retrieval » decrease striatal (Expand search), dense retrieval (Expand search), database retrieval (Expand search)
retrieval process » retrieval models (Expand search), removal process (Expand search)
decreased faster » decreased after (Expand search), decreased base (Expand search), decreased fas (Expand search)
faster decrease » rate decrease (Expand search)
the decreased » the decrease (Expand search), the deceased (Expand search), the increased (Expand search)
decrease the » decreases the (Expand search), decrease of (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 retrieval process ) OR ( decrease the decreased faster decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease in decrease retrieval process ) OR ( decrease the decreased faster decrease ))*.