Perhaps you should try some spelling variations:
these processes » the processes (Expand search), thermal processes (Expand search), change processes (Expand search)
positive python » positive pathogen (Expand search), positive person (Expand search), positive pathogens (Expand search)
diseases these » diseases the (Expand search), diseases their (Expand search), diseases they (Expand search)
decrease and » decreases and (Expand search), decrease in (Expand search), decrease of (Expand search)
and diseases » and disease (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: (( decrease AND diseases these processes ) OR ( python AND positive python programming ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease and diseases these processes ) OR ( python and positive python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease and diseases these processes ) OR ( python and positive python programming ))*.