Perhaps you should try some spelling variations:
prototype linear » prototype lower (Expand search), prototype clear (Expand search), prototype in (Expand search)
code prototype » cost prototype (Expand search), bod prototype (Expand search), cage prototype (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
code code » code cdc (Expand search)
in python » _ python (Expand search)

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

• Removing quotes may allow a broader search: (( code code prototype linear programming ) OR ( in python python python programming ))~.