Perhaps you should try some spelling variations:
defense structure » defence structure (Expand search), defect structure (Expand search), dense structures (Expand search)
structure process » structural process (Expand search), structural processes (Expand search), structure property (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 liver » decreases liver (Expand search), decrease litter (Expand search), decrease after (Expand search)
liver decrease » litter decrease (Expand search), liver desease (Expand search), life decrease (Expand search)
decrease the » decreases the (Expand search), decrease in (Expand search), decrease of (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 the defense structure process ) OR ( decrease liver decrease lesions decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease the defense structure process ) OR ( decrease liver decrease lesions decrease ))*.