Perhaps you should try some spelling variations:
decreases malar » decreases malaria (Expand search), decreases boar (Expand search), decreases mtor (Expand search)
rats decreases » and decreases (Expand search), but decreases (Expand search), stress decreases (Expand search)
decrease rats » decreased rate (Expand search), decreases rate (Expand search), decrease at (Expand search)
malar process » labor process (Expand search), bayer process (Expand search), fair process (Expand search)
decrease toc » decrease of (Expand search), decrease the (Expand search), decreased to (Expand search)
toc decrease » to decrease (Expand search), the decrease (Expand search), not 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)

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 rats decreases malar process ) OR ( decrease toc decrease AND decrease ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease rats decreases malar process ) OR ( decrease toc decrease and decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease rats decreases malar process ) OR ( decrease toc decrease and decrease ))*.