Perhaps you should try some spelling variations:
"image segmentation python code geant4" » "image segmentation method code geant4" (Expand search), "image segmentation methods code geant4" (Expand search), "image segmentation on code geant4" (Expand search), "image segmentation python codigo geant4" (Expand search), "image segmentation python noise geant4" (Expand search)
"python coding python python programming" » "python codigo python python programming" (Expand search), "action coding python python programming" (Expand search), "python codigos python python programming" (Expand search), "python using python python programming" (Expand search), "python coding pythons python programming" (Expand search), "python coding piton python programming" (Expand search), "python coding pitons 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: (("image segmentation python code geant4") OR ("python coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"image segmentation python code geant4\") OR (\"python coding python python programming\"))".
• Removing quotes may allow a broader search: (( image segmentation python code geant4 ) OR ( python coding python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("image segmentation python code geant4") OR ("python coding python python programming"))*.