Perhaps you should try some spelling variations:
venation patterns » vegetation patterns (Expand search), defecation patterns (Expand search), migration patterns (Expand search)
decrease venation » decrease predation (Expand search), decrease prevention (Expand search), decrease migration (Expand search)
rate decrease » rats decreases (Expand search), rate increase (Expand search), and decrease (Expand search)
decrease rate » decreased rate (Expand search), decreases rate (Expand search), decrease at (Expand search)
decrease not » decrease of (Expand search), decrease akt (Expand search), decrease at (Expand search)
not decrease » not increase (Expand search), and decrease (Expand search), the decrease (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.

• If you are trying to use Boolean operators, they must be ALL CAPS: (( decrease to decrease NOT decrease ) OR ( decrease rate decrease venation patterns ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease to decrease not decrease ) OR ( decrease rate decrease venation patterns ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease to decrease not decrease ) OR ( decrease rate decrease venation patterns ))*.