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 and c program" » "coder decoder and c program" (Expand search), "code code and c program" (Expand search), "decoder codec and c program" (Expand search), "coder code and c program" (Expand search), "coder codes and c program" (Expand search), "coder poder and c program" (Expand search), "coder coder and c programs" (Expand search), "coder coder and abc program" (Expand search), "coder coder and _ 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 and c program") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder and c program\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder and c program ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder and c program") OR ("_ python python python programming"))*.