Perhaps you should try some spelling variations:
vegetation patterns » migration patterns (Expand search), interaction patterns (Expand search), methylation patterns (Expand search)
decrease vegetation » increased vegetation (Expand search), decrease migration (Expand search), dense vegetation (Expand search)
decrease soon » decrease food (Expand search), decrease on (Expand search), decrease sod (Expand search)
soon decrease » soil decrease (Expand search), on decrease (Expand search), skins decrease (Expand search)
decrease and » decreases and (Expand search), decrease in (Expand search), decrease of (Expand search)
and decrease » and decreases (Expand search), and decreased (Expand search), and increase (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 AND decrease soon decrease ) OR ( decrease to decrease vegetation patterns ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease and decrease soon decrease ) OR ( decrease to decrease vegetation patterns ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease and decrease soon decrease ) OR ( decrease to decrease vegetation patterns ))*.