Perhaps you should try some spelling variations:
"coder coder question convex programming" » "coder coder question cone programming" (Expand search), "coder coder question computer programming" (Expand search), "coder coder question concert programming" (Expand search), "coder coder questions concert programming" (Expand search), "coder modern question convex programming" (Expand search), "coder color question convex programming" (Expand search), "coder gender question convex programming" (Expand search), "coder decoder question convex programming" (Expand search), "code code question convex programming" (Expand search), "decoder codec question convex 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 question convex programming") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder question convex programming\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder question convex programming ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder question convex programming") OR ("_ python python python programming"))*.