Perhaps you should try some spelling variations:
discharge thermal » discharges thermal (Expand search), discharge material (Expand search), discharge oral (Expand search)
thermal process » thermal processing (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
of discharge » glow discharge (Expand search), post discharge (Expand search), and discharge (Expand search)
python based » action based (Expand search)
based python » based path (Expand search), and python (Expand search), gate python (Expand search)
decrease of » decrease in (Expand search)

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

• Removing quotes may allow a broader search: (( decrease of discharge thermal process ) OR ( python based python python programming ))~.