Perhaps you should try some spelling variations:
decrease sparking » decrease walking (Expand search), decrease during (Expand search)
decrease lesions » disease lesions (Expand search), decreased response (Expand search), decrease adhesion (Expand search)
lesions decrease » response decrease (Expand search), lesions case (Expand search)
sparking pattern » stacking pattern (Expand search), stacking patterns (Expand search), spawning patterns (Expand search)
decrease that » decrease the (Expand search), decrease at (Expand search), decrees that (Expand search)
that decrease » that increase (Expand search), that increases (Expand search), can decrease (Expand search)
decrease not » decrease of (Expand search), decrease akt (Expand search), decrease at (Expand search)
not decrease » to decrease (Expand search), not increase (Expand search), and 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 that decrease lesions decrease ) OR ( decrease NOT decrease sparking pattern ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease that decrease lesions decrease ) OR ( decrease not decrease sparking pattern ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease that decrease lesions decrease ) OR ( decrease not decrease sparking pattern ))*.