Perhaps you should try some spelling variations:
during decrease » during increased (Expand search), during depressed (Expand search), during disease (Expand search)
decrease food » decreases food (Expand search), increase food (Expand search), decreases blood (Expand search)
food problem » old problem (Expand search), word problem (Expand search), posed problem (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)
or decrease » of decrease (Expand search), not decrease (Expand search), to decrease (Expand search)
decrease or » decrease of (Expand search), decrease on (Expand search), decrease pro (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: (( increase during decrease food problem ) OR ( decrease toc decrease OR decrease ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( increase during decrease food problem ) OR ( decrease toc decrease or decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( increase during decrease food problem ) OR ( decrease toc decrease or decrease ))*.