Perhaps you should try some spelling variations:
rate decreased » rate decrease (Expand search), rats decreased (Expand search), are decreased (Expand search)
decreased need » decreased feed (Expand search), decreased level (Expand search), decreased sleep (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)
decrease rate » decreased rate (Expand search), decreases rate (Expand search), decrease at (Expand search)
need objects » naked objects (Expand search), typed objects (Expand search), field objects (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 _ decrease that decrease ) OR ( decrease rate decreased need objects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease _ decrease that decrease ) OR ( decrease rate decreased need objects ))*.