Perhaps you should try some spelling variations:
decreases processes » decrease processes (Expand search)
diseases decreases » disease decreases (Expand search), disease increases (Expand search), diseases disease (Expand search)
level python » lines python (Expand search)
decrease at » decrease and (Expand search), decrease in (Expand search), decrease of (Expand search)
at diseases » cat diseases (Expand search), at disease (Expand search), goat diseases (Expand search)
python and » python based (Expand search)
and level » and levels (Expand search), and legal (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 at diseases decreases processes ) OR ( python AND level python programming ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease at diseases decreases processes ) OR ( python and level python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease at diseases decreases processes ) OR ( python and level python programming ))*.