Perhaps you should try some spelling variations:
increase survival » increases survival (Expand search), increased survival (Expand search), increase social (Expand search)
survival process » survival progress (Expand search), survival processing (Expand search), survival protein (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 toc » decrease of (Expand search), decrease the (Expand search), decreased to (Expand search)
toc increase » c increase (Expand search), co2 increase (Expand search), cox increase (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 toc increase survival process ) OR ( decrease food decrease AND decrease ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease toc increase survival process ) OR ( decrease food decrease and decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease toc increase survival process ) OR ( decrease food decrease and decrease ))*.