Perhaps you should try some spelling variations:
grouping patterns » grazing patterns (Expand search), drinking patterns (Expand search), driving patterns (Expand search)
decrease grouping » decrease during (Expand search), decrease lodging (Expand search), decrease owing (Expand search)
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 to » decreased to (Expand search), decrease toc (Expand search), decrease the (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 decrease AND decrease ) OR ( decrease to decrease grouping patterns ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease lesions decrease AND decrease ) OR ( decrease to decrease grouping patterns ))*.