Perhaps you should try some spelling variations:
"model implementation and cone programming" » "model implementation of cone programming" (Expand search), "model implementation and and programming" (Expand search), "model implementation and computer programming" (Expand search), "model implementation and _ programming" (Expand search)
"python using python python programming" » "python using pythons python programming" (Expand search), "python using piton python programming" (Expand search), "python using pitons python programming" (Expand search), "python usando python python programming" (Expand search), "python coding python python programming" (Expand search), "action using python python programming" (Expand search), "python in 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: (("model implementation and cone programming") OR ("python using python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"model implementation and cone programming\") OR (\"python using python python programming\"))".
• Removing quotes may allow a broader search: (( model implementation and cone programming ) OR ( python using python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("model implementation and cone programming") OR ("python using python python programming"))*.