Perhaps you should try some spelling variations:
modeling vpython » modeling method (Expand search)
control programs » control program (Expand search), control problems (Expand search), control problem (Expand search)
case complexity » the complexity (Expand search), and complexity (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)
coder case » border case (Expand search), power case (Expand search), lower case (Expand search)

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

• Removing quotes may allow a broader search: (( coder case complexity control programs ) OR ( using modeling vpython python programming ))~.