Perhaps you should try some spelling variations:
decrease dental » decreased mental (Expand search), decrease fetal (Expand search), decrease renal (Expand search)
dental effects » central effects (Expand search), legal effects (Expand search), lethal effects (Expand search)
decrease with » decreases with (Expand search), increase with (Expand search), decrease in (Expand search)
with decrease » with decreased (Expand search), with deceased (Expand search), with increase (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 increase » and increases (Expand search), and increased (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 AND increase ) OR ( decrease with decrease dental effects ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease toc decrease and increase ) OR ( decrease with decrease dental effects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease toc decrease and increase ) OR ( decrease with decrease dental effects ))*.