Perhaps you should try some spelling variations:
rate decrease » rats decreases (Expand search), rate increase (Expand search), to decrease (Expand search)
decrease rate » decreased rate (Expand search), decreases rate (Expand search), decrease at (Expand search)
decrease cots » decrease costs (Expand search), decrease its (Expand search), decrease total (Expand search)
decrease by » decreased by (Expand search), decrease of (Expand search), decrease _ (Expand search)
by decrease » by decreased (Expand search), may decrease (Expand search), any decrease (Expand search)
in decrease » in decreased (Expand search), on decrease (Expand search), pain decrease (Expand search)
cots based » dots based (Expand search), hosts based (Expand search), plots based (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 by decrease in decrease ) OR ( decrease rate decrease cots based ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease by decrease in decrease ) OR ( decrease rate decrease cots based ))*.