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 cost » decrease costs (Expand search), decreases post (Expand search), decreasing cost (Expand search)
on decreased » in decreased (Expand search), of decreased (Expand search), on deceased (Expand search)
decreased il » decreased in (Expand search), increased il (Expand search), decreased risk (Expand search)
decrease on » decrease in (Expand search), decrease of (Expand search), decrease or (Expand search)
il decrease » l decrease (Expand search), will decrease (Expand search), oil decreases (Expand search)
cost based » test based (Expand search), forest based (Expand search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease on decreased il decrease ) OR ( decrease lesions decrease cost based ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease on decreased il decrease ) OR ( decrease lesions decrease cost based ))*.