Perhaps you should try some spelling variations:
"an introduction python python programming" » "an introduction section python programming" (Expand search), "an introduction earthen python programming" (Expand search), "an introduction methods python programming" (Expand search), "an introduction pythons python programming" (Expand search), "an introduction piton python programming" (Expand search), "an introduction pitons python programming" (Expand search)
"coder functions using c programming" » "power functions using c programming" (Expand search), "order functions using c programming" (Expand search), "colour functions using c programming" (Expand search), "coder function using c programming" (Expand search), "coder reactions using c programming" (Expand search), "coder functions using _ programming" (Expand search), "coder functions using cone programming" (Expand search), "coder functions using and programming" (Expand search), "coder functions using cfd 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 functions using c programming") OR ("an introduction python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder functions using c programming\") OR (\"an introduction python python programming\"))".
• Removing quotes may allow a broader search: (( coder functions using c programming ) OR ( an introduction python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder functions using c programming") OR ("an introduction python python programming"))*.