Perhaps you should try some spelling variations:
decreases disease » diseases disease (Expand search), decreases adipose (Expand search), decreases breast (Expand search)
disease processes » disease process (Expand search), disease progress (Expand search), these processes (Expand search)
owing decreases » logging decreases (Expand search), ageing decreases (Expand search), taping decreases (Expand search)
decrease owing » decrease lodging (Expand search), decrease during (Expand search), decrease in (Expand search)
piston python » piton python (Expand search), pitons python (Expand search), python python (Expand search)
python and » python based (Expand search)
and piston » and pigeon (Expand search), and gaston (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 owing decreases disease processes ) OR ( python AND piston python programming ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease owing decreases disease processes ) OR ( python and piston python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease owing decreases disease processes ) OR ( python and piston python programming ))*.