Perhaps you should try some spelling variations:
grid programming » period programming (Expand search), child programming (Expand search), goal programming (Expand search)
decrease ratio » decreased ratio (Expand search), decrease at (Expand search), decreased rate (Expand search)
ratio decrease » to decrease (Expand search), rats decreases (Expand search)
vpython python » python python (Expand search), pythons python (Expand search), piton python (Expand search)
decrease grid » decrease lipid (Expand search), decrease covid (Expand search), decrease in (Expand search)
code vpython » 3d vpython (Expand search)
python code » python coding (Expand search), python redes (Expand search)

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

• Removing quotes may allow a broader search: (( decrease ratio decrease grid programming ) OR ( python code vpython python programming ))~.