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