Perhaps you should try some spelling variations:
vpython programming » python programming (Expand search), method programming (Expand search), creation programming (Expand search)
decrease processes » disease processes (Expand search), decay processes (Expand search), increase process (Expand search)
decrease decrease » decrease release (Expand search), disease decreases (Expand search), decreases disease (Expand search)
python descriptor » motion descriptor (Expand search), pattern descriptor (Expand search), hog descriptor (Expand search)
descriptor model » descriptors model (Expand search), descriptive model (Expand search), descriptor moment (Expand search)
model vpython » modeling vpython (Expand search), modulo python (Expand search)
decrease at » decrease and (Expand search), decrease in (Expand search), decrease of (Expand search)
at decrease » rate decrease (Expand search), that decrease (Expand search), and decrease (Expand search)

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

• Removing quotes may allow a broader search: (( decrease at decrease decrease processes ) OR ( python descriptor model vpython programming ))~.