Perhaps you should try some spelling variations:
based programming » and programming (Expand search), based program (Expand search), cone programming (Expand search)
vpython classes » vpython colisoes (Expand search)
decrease based » decreased base (Expand search), decrease blood (Expand search)
code decrease » oxide decrease (Expand search), roads decrease (Expand search), to decrease (Expand search)
classes java » classes and (Expand search), classes at (Expand search), classes an (Expand search)
code code » code cdc (Expand search)

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

• Removing quotes may allow a broader search: (( code code decrease based programming ) OR ( vpython classes java python programming ))~.