Perhaps you should try some spelling variations:
"coder coder maxima convex programming" » "coder coder maxima cone programming" (Expand search), "coder coder maxima computer programming" (Expand search), "coder poder maximo convex programming" (Expand search), "coder molar maxima convex programming" (Expand search), "coder jader maximo convex programming" (Expand search), "coder decoder maxima convex programming" (Expand search), "code code maxima convex programming" (Expand search), "decoder codec maxima 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 maxima convex programming") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder maxima convex programming\") OR (\"_ python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder maxima convex programming ) OR ( _ python python python programming ))*.