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