Perhaps you should try some spelling variations:
"coder coder indexing discrete programming" » "coder coder indexing distributed programming" (Expand search), "coder coder indexing extreme programming" (Expand search), "coder coder indexing scratch programming" (Expand search), "coder coder indexing scheme programming" (Expand search), "coder cordel indexing discrete programming" (Expand search), "coder video indexing discrete programming" (Expand search), "coder 3dr indexing discrete programming" (Expand search), "coder decoder indexing discrete programming" (Expand search), "code code indexing discrete programming" (Expand search), "decoder codec indexing discrete programming" (Expand search)
"_ python python python programming" » "_ pythons python python programming" (Expand search), "_ piton python python programming" (Expand search), "_ pitons 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 indexing discrete programming") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder indexing discrete programming\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder indexing discrete programming ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder indexing discrete programming") OR ("_ python python python programming"))*.