Perhaps you should try some spelling variations:
"coder documentation gnu teaching programming" » "coder documentation gnu teaching program" (Expand search), "model documentation gnu teaching programming" (Expand search), "car documentation gnu teaching programming" (Expand search), "care documentation gnu teaching programming" (Expand search), "coder documentation and teaching programming" (Expand search), "coder documentation in teaching programming" (Expand search), "coder documentation on teaching programming" (Expand search), "coder documentation aging teaching programming" (Expand search), "coder documentation sensu teaching programming" (Expand search), "coder documentation inga teaching programming" (Expand search)
"python coding python python programming" » "python codigo python python programming" (Expand search), "action coding python python programming" (Expand search), "python code 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: (("coder documentation gnu teaching programming") OR ("python coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder documentation gnu teaching programming\") OR (\"python coding python python programming\"))*".
• Removing quotes may allow a broader search: (( coder documentation gnu teaching programming ) OR ( python coding python python programming ))*.