Perhaps you should try some spelling variations:
decrease rate » decreased rate (Expand search), decreases rate (Expand search), decrease at (Expand search)
rate decrease » rats decreases (Expand search), rate increase (Expand search), to decrease (Expand search)
decrease food » decreases food (Expand search), increase food (Expand search), decreases blood (Expand search)
food decrease » food decreases (Expand search), foods decreases (Expand search), flow decrease (Expand search)
decrease and » decreases and (Expand search), decrease in (Expand search), decrease of (Expand search)
and decrease » and decreases (Expand search), and decreased (Expand search), and increase (Expand search)
decrease il » decreased il (Expand search), decrease in (Expand search), decrease hiv (Expand search)
il doing » is doing (Expand search), in doing (Expand search), its doing (Expand search)

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( decrease rate decrease AND decrease ) OR ( decrease food decrease il doing ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease rate decrease and decrease ) OR ( decrease food decrease il doing ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease rate decrease and decrease ) OR ( decrease food decrease il doing ))*.