Perhaps you should try some spelling variations:
dispersion based » dispersion and (Expand search), dispersion mspd (Expand search), dispersal based (Expand search)
based processes » based process (Expand search), and processes (Expand search)
of dispersion » and dispersion (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
decrease of » decrease in (Expand search)
python 2a » python _ (Expand search), python c (Expand search), python to (Expand search)
2a python » via python (Expand search), rpa python (Expand search), mda python (Expand search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease of dispersion based processes ) OR ( python 2a python python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease of dispersion based processes ) OR ( python 2a python python programming ))*.