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