Perhaps you should try some spelling variations:
"coder coder use convex programming" » "coder coder use cone programming" (Expand search), "coder coder use computer programming" (Expand search), "coder decoder use convex programming" (Expand search), "code code use convex programming" (Expand search), "decoder codec use convex programming" (Expand search), "coder coder use context programming" (Expand search), "coder coder use cover programming" (Expand search), "coder coder the convex programming" (Expand search), "coder cover use convex programming" (Expand search), "coder code use convex programming" (Expand search), "coder code reuse convex programming" (Expand search)
"on python python python programming" » "on pythons python python programming" (Expand search), "on piton python python programming" (Expand search), "on pitons python python programming" (Expand search), "in python pythin python programming" (Expand search), "of python pythof python programming" (Expand search), "_ python pyth_ 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 use convex programming") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder use convex programming\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder use convex programming ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder use convex programming") OR ("on python python python programming"))*.