Perhaps you should try some spelling variations:
"coder precoder the convex programming" » "coder precoder the cone programming" (Expand search), "coder precoder the computer programming" (Expand search), "coder decoder the convex programming" (Expand search), "coder recover the convex programming" (Expand search), "coder preceded the convex programming" (Expand search), "coder precedes the convex programming" (Expand search), "coder precoder the convent 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 precoder the convex programming") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder precoder the convex programming\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder precoder the convex programming ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder precoder the convex programming") OR ("_ python python python programming"))*.