Perhaps you should try some spelling variations:
decrease life » decrease liver (Expand search), increase life (Expand search), decreases liver (Expand search)
life decrease » life decreases (Expand search), life decreased (Expand search), life increase (Expand search)
decrease risk » decreased risk (Expand search), increase risk (Expand search), decrease in (Expand search)
risk decrease » risk decreases (Expand search), risk increase (Expand search), break decrease (Expand search)
decrease fear » decreased fear (Expand search), decrease fetal (Expand search), decreased heart (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)
fear not » fear notes (Expand search), fear of (Expand search), fear to (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 decrease life decrease ) OR ( decrease risk decrease fear NOT ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease toc decrease life decrease ) OR ( decrease risk decrease fear not ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease toc decrease life decrease ) OR ( decrease risk decrease fear not ))*.