Perhaps you should try some spelling variations:
decrease lesions » disease lesions (Expand search), decreased response (Expand search), decrease adhesion (Expand search)
lesions decrease » response decrease (Expand search), lesions case (Expand search)
decrease owing » decrease lodging (Expand search), decrease during (Expand search), decrease in (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)
owing effect » sowing effect (Expand search), doping effect (Expand search), poling effect (Expand search)
decrease or » decrease of (Expand search), decrease on (Expand search), decrease pro (Expand search)
or decrease » to decrease (Expand search), _ decrease (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 NOT decrease lesions decrease ) OR ( decrease OR decrease owing effect ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease not decrease lesions decrease ) OR ( decrease or decrease owing effect ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease not decrease lesions decrease ) OR ( decrease or decrease owing effect ))*.