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