Perhaps you should try some spelling variations:
decrease theory » decrease their (Expand search), decrease the (Expand search), decreased memory (Expand search)
theory decrease » the decrease (Expand search), therapy decreases (Expand search), memory decreases (Expand search)
pain decreases » pain decrease (Expand search), brain decreases (Expand search), pten decreases (Expand search)
decreases with » increases with (Expand search), decreases in (Expand search)
l2 processing » and processing (Expand search), alarm processing (Expand search)
decrease pain » decreases pain (Expand search), decrease in (Expand search), decreased brain (Expand search)
with decrease » with decreased (Expand search), with deceased (Expand search), with increase (Expand search)
decrease l2 » decrease low (Expand search), decrease in (Expand search), decrease of (Expand search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease theory decrease l2 processing ) OR ( decrease pain decreases with decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease theory decrease l2 processing ) OR ( decrease pain decreases with decrease ))*.