Perhaps you should try some spelling variations:
"coder coder _ essential functions" » "coder coder _ potential functions" (Expand search), "coder coder _ exponential functions" (Expand search), "coder coder _ special functions" (Expand search), "coder decoder _ essential functions" (Expand search), "code code _ essential functions" (Expand search), "decoder codec _ essential functions" (Expand search)
"via python python python programming" » "via pythons python python programming" (Expand search), "via piton python python programming" (Expand search), "via pitons python python programming" (Expand search), "in python 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: (("coder coder _ essential functions") OR ("via python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder _ essential functions\") OR (\"via python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder _ essential functions ) OR ( via python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder _ essential functions") OR ("via python python python programming"))*.