Perhaps you should try some spelling variations:
decrease lesions » disease lesions (Expand search), decreased response (Expand search), decrease adhesion (Expand search)
walking subjects » aging subjects (Expand search), talking objects (Expand search), seeking subjects (Expand search)
lesions case » lesion case (Expand search), lesions caused (Expand search), lesions based (Expand search)
case walking » care walking (Expand search), based walking (Expand search), race walking (Expand search)
decrease or » decrease of (Expand search), decrease pro (Expand search), decrease toc (Expand search)
or decrease » of decrease (Expand search), not decrease (Expand search), to 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 decrease OR decrease ) OR ( decrease lesions case walking subjects ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease AND decrease or decrease ) OR ( decrease lesions case walking subjects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease AND decrease or decrease ) OR ( decrease lesions case walking subjects ))*.