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 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)
owing effect » sowing effect (Expand search), doping effect (Expand search), poling effect (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 owing effect ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease that decrease lesions decrease ) OR ( decrease not decrease owing effect ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease that decrease lesions decrease ) OR ( decrease not decrease owing effect ))*.