Perhaps you should try some spelling variations:
leaves decrease » leaves increase (Expand search), lesions decrease (Expand search), changes decrease (Expand search)
decayed leaves » detached leaves (Expand search), damaged leaves (Expand search)
edge processes » edge process (Expand search), sludge processes (Expand search), peace processes (Expand search)
methods python » methods action (Expand search), pythons python (Expand search), methods method (Expand search)
decrease edge » decrease age (Expand search), decrease due (Expand search), decrease the (Expand search)
python and » python based (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: (( decayed leaves decrease edge processes ) OR ( python AND methods python programming ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decayed leaves decrease edge processes ) OR ( python and methods python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( decayed leaves decrease edge processes ) OR ( python and methods python programming ))*.