Perhaps you should try some spelling variations:
computation and » computational and (Expand search), computation of (Expand search)
models vpython » modeling vpython (Expand search), modulo python (Expand search)
vpython python » python python (Expand search), pythons python (Expand search), piton python (Expand search)
using models » using model (Expand search), ising models (Expand search), nursing models (Expand search)
and based » land based (Expand search), and bases (Expand search), and base (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: (( AND computation AND based program ) OR ( using models vpython python programming ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( AND computation and based program ) OR ( using models vpython python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( AND computation and based program ) OR ( using models vpython python programming ))*.