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 decoder c program" » "coder encoder decoder c program" (Expand search), "code code decoder c program" (Expand search), "decoder codec decoder c program" (Expand search), "codesc poder decoder c program" (Expand search), "coder coder decoder _ program" (Expand search), "coder coder decoders _ program" (Expand search), "coder coder decoder in program" (Expand search), "coder coder decoder c programs" (Expand search), "coder coder decoder abc program" (Expand search)

You may be able to get more results by adjusting your search query.

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