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