Perhaps you should try some spelling variations:
convex programming » cone programming (Expand search), computer programming (Expand search)
action models » action model (Expand search), reaction models (Expand search), fraction models (Expand search)
models convex » models cone (Expand search), models covid (Expand search), models coffee (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
coder action » border action (Expand search), under action (Expand search), power action (Expand search)
using python » usando python (Expand search), in python (Expand search)
using using » using fusing (Expand search), housing using (Expand search), nursing using (Expand search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( coder action models convex programming ) OR ( using using python python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( coder action models convex programming ) OR ( using using python python programming ))*.