Perhaps you should try some spelling variations:
matter properties » water properties (Expand search), paper properties (Expand search), material properties (Expand search)
decrease matter » decrease after (Expand search), decrease litter (Expand search), decrease catheter (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
python based » action based (Expand search)
based python » based path (Expand search), and python (Expand search), gate python (Expand search)
in decrease » in decreased (Expand search), on decrease (Expand search), pain decrease (Expand search)

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

• Removing quotes may allow a broader search: (( decrease in decrease matter properties ) OR ( python based python python programming ))~.