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