Perhaps you should try some spelling variations:
implement control » implementing control (Expand search), employment control (Expand search), movement control (Expand search)
modeling vpython » modeling method (Expand search)
using modeling » using model (Expand search), using modern (Expand search), using models (Expand search)
vpython python » python python (Expand search), pythons python (Expand search), piton python (Expand search)
and implement » and implements (Expand search), and complement (Expand search), and implementing (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: (( code AND implement control program ) OR ( using modeling vpython python programming ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( code and implement control program ) OR ( using modeling vpython python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( code and implement control program ) OR ( using modeling vpython python programming ))*.