Perhaps you should try some spelling variations:
"coder python code convex programming" » "coder python code cone programming" (Expand search), "coder python code computer programming" (Expand search), "codigo python code convex programming" (Expand search), "compra python code convex programming" (Expand search), "coder python some convex programming" (Expand search), "coder python closed convex programming" (Expand search), "coder python code concept programming" (Expand search)
"using in python python programming" » "using in pythons python programming" (Expand search), "using in piton python programming" (Expand search), "using in pitons python programming" (Expand search), "using _ 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 python code convex programming") OR ("using in python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder python code convex programming\") OR (\"using in python python programming\"))*".
• Removing quotes may allow a broader search: (( coder python code convex programming ) OR ( using in python python programming ))*.