Perhaps you should try some spelling variations:
increase theory » increase their (Expand search), decrease theory (Expand search), increase tremors (Expand search)
theory decrease » the decrease (Expand search), therapy decreases (Expand search), memory decreases (Expand search)
decrease ictal » decrease fetal (Expand search), decrease total (Expand search), decreases rectal (Expand search)
ictal patterns » facial patterns (Expand search), visual patterns (Expand search), social patterns (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)
decrease pro » decrease or (Expand search), decrease food (Expand search), decrease in (Expand search)
pro decrease » to decrease (Expand search), or decrease (Expand search), price decrease (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 AND increase theory decrease ) OR ( decrease pro decrease ictal patterns ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease and increase theory decrease ) OR ( decrease pro decrease ictal patterns ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease and increase theory decrease ) OR ( decrease pro decrease ictal patterns ))*.