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