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