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