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