Perhaps you should try some spelling variations:
"coder coding on convex programming" » "coder coding on cone programming" (Expand search), "coder coding on computer programming" (Expand search), "modern coding on convex programming" (Expand search), "color coding on convex programming" (Expand search), "odor coding on convex programming" (Expand search), "coder coding of convex programming" (Expand search), "coder coding in convex programming" (Expand search), "coder coding an convex programming" (Expand search), "coder coding non convex programming" (Expand search)
"python coding python python programming" » "python codigo python python programming" (Expand search), "action coding python python programming" (Expand search), "python code python python programming" (Expand search), "python codigos python python programming" (Expand search), "python using python python programming" (Expand search), "python coding pythons python programming" (Expand search), "python coding piton python programming" (Expand search), "python coding pitons 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 coding on convex programming") OR ("python coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding on convex programming\") OR (\"python coding python python programming\"))".
• Removing quotes may allow a broader search: (( coder coding on convex programming ) OR ( python coding python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coding on convex programming") OR ("python coding python python programming"))*.