Perhaps you should try some spelling variations:
computational code » computational model (Expand search), computational cost (Expand search), computational models (Expand search)
and computational » _ computational (Expand search)
code activity » core activity (Expand search), bone activity (Expand search), care activity (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
using python » usando python (Expand search), in python (Expand search)

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( AND computational code activity program ) OR ( using python python python programming ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( and computational code activity program ) OR ( using python python python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( and computational code activity program ) OR ( using python python python programming ))*.