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