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 convex logic programming" » "coder closed convex logic programming" (Expand search), "coder or convex logic programming" (Expand search), "coder some convex logic programming" (Expand search), "coder coder complex logic programming" (Expand search), "coder decoder convex logic programming" (Expand search), "code code convex logic programming" (Expand search), "decoder codec convex logic 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 convex logic programming") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder convex logic programming\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder convex logic programming ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder convex logic programming") OR ("_ python python python programming"))*.