Perhaps you should try some spelling variations:
lesions decreased » lesions decrease (Expand search), lesions increase (Expand search), deletion decreased (Expand search)
decrease lesions » disease lesions (Expand search), decreased response (Expand search), decrease adhesion (Expand search)
need processing » seed processing (Expand search), feed processing (Expand search), seeds processing (Expand search)
decreased need » decreased feed (Expand search), decreased level (Expand search), decreased sleep (Expand search)
decrease of » decrease in (Expand search)
of decrease » or decrease (Expand search), not decrease (Expand search), to decrease (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 lesions decreased need processing ) OR ( decrease of decrease NOT decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease lesions decreased need processing ) OR ( decrease of decrease NOT decrease ))*.