Perhaps you should try some spelling variations:
decrease processes » disease processes (Expand search), defense processes (Expand search), decay processes (Expand search)
disease decrease » disease decreases (Expand search), diseases decreases (Expand search), disease increased (Expand search)
learning history » training history (Expand search), learning chemistry (Expand search), learning theory (Expand search)
python learning » action learning (Expand search), motion learning (Expand search), emotion learning (Expand search)
history python » history paths (Expand search), history prison (Expand search)
decrease and » decreases and (Expand search), decrease in (Expand search), decrease of (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 disease decrease processes ) OR ( python learning history python programming ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease and disease decrease processes ) OR ( python learning history python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease and disease decrease processes ) OR ( python learning history python programming ))*.