Perhaps you should try some spelling variations:
"materials using python python programming" » "materials testing python python programming" (Expand search), "materials used python python programming" (Expand search), "materials using pythons python programming" (Expand search), "materials using piton python programming" (Expand search), "materials using pitons python programming" (Expand search), "materials usando python python programming" (Expand search)
"coder coding in python coding" » "coder coding in python codigo" (Expand search), "coder coding in action coding" (Expand search), "coder coding in python code" (Expand search), "modern coding in python coding" (Expand search), "color coding in python coding" (Expand search), "odor coding in python coding" (Expand search), "coder coding rna python coding" (Expand search), "coder coding and python coding" (Expand search), "coder coding _ python coding" (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: (("coder coding in python coding") OR ("materials using python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding in python coding\") OR (\"materials using python python programming\"))".
• Removing quotes may allow a broader search: (( coder coding in python coding ) OR ( materials using python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coding in python coding") OR ("materials using python python programming"))*.