Perhaps you should try some spelling variations:
"codigo geant4 python python code" » "codigo gate python python code" (Expand search), "codigo geant4 pythons python code" (Expand search), "codigo geant4 piton python code" (Expand search), "codigo geant4 pitons python code" (Expand search)
"in python python python programming" » "in pythons python python programming" (Expand search), "in piton python python programming" (Expand search), "in pitons python python programming" (Expand search), "_ python python python programming" (Expand search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("codigo geant4 python python code") OR ("in python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"codigo geant4 python python code\") OR (\"in python python python programming\"))".
• Removing quotes may allow a broader search: (( codigo geant4 python python code ) OR ( in python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("codigo geant4 python python code") OR ("in python python python programming"))*.