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