Perhaps you should try some spelling variations:
linear programmin » linear programming (Expand search), nonlinear programming (Expand search)
decrease linear » decrease liver (Expand search), increased linear (Expand search), decreases liver (Expand search)
vpython codigo » python codigo (Expand search), python coding (Expand search), vpython colisoes (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
decrease toc » decrease of (Expand search), decrease the (Expand search), decrease on (Expand search)
toc decrease » to decrease (Expand search), the decrease (Expand search), not decrease (Expand search)

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

• Removing quotes may allow a broader search: (( decrease toc decrease linear programmin ) OR ( vpython codigo python python programming ))~.