Perhaps you should try some spelling variations:
decreased rate » increased rate (Expand search), decreased base (Expand search), decreased native (Expand search)
rate decrease » rats decreases (Expand search), rate increase (Expand search), and decrease (Expand search)
decrease soil » decreases soil (Expand search), increase soil (Expand search), decrease il (Expand search)
soil decrease » oil decreases (Expand search), not decrease (Expand search), of decrease (Expand search)
decrease road » decrease food (Expand search), decrease sod (Expand search), decreased rorc (Expand search)
road effects » sound effects (Expand search), and effects (Expand search)
decrease to » decreased to (Expand search), decrease toc (Expand search), decrease the (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: "(( decreased rate decrease soil decrease ) OR ( decrease to decrease road effects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decreased rate decrease soil decrease ) OR ( decrease to decrease road effects ))*.