Perhaps you should try some spelling variations:
vpython programming » python programming (Expand search), method programming (Expand search), creation programming (Expand search)
decreases disease » diseases disease (Expand search), decreases adipose (Expand search), decreases breast (Expand search)
python descriptor » motion descriptor (Expand search), pattern descriptor (Expand search), hog descriptor (Expand search)
disease progress » disease process (Expand search), disease progression (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 and » decreases and (Expand search), decrease in (Expand search), decrease of (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 decreases disease progress ) OR ( python descriptor model vpython programming ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease and decreases disease progress ) OR ( python descriptor model vpython programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease and decreases disease progress ) OR ( python descriptor model vpython programming ))*.