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