Perhaps you should try some spelling variations:
"variance optimization python python programming" » "surface optimization python python programming" (Expand search), "engine optimization python python programming" (Expand search), "value optimization python python programming" (Expand search), "variance optimization method python programming" (Expand search), "variance optimization option python programming" (Expand search), "variance optimization methods python programming" (Expand search), "variance optimization pythons python programming" (Expand search), "variance optimization piton python programming" (Expand search), "variance optimization pitons python programming" (Expand search)
"coder solutions in convex programming" » "coder solutions in cone programming" (Expand search), "coder solutions in computer programming" (Expand search), "coder solution in convex programming" (Expand search), "holder solutions in convex programming" (Expand search), "powder solutions in convex programming" (Expand search), "coder solutions _ convex programming" (Expand search), "coder solutions non convex programming" (Expand search), "coder solutions of convex 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 solutions in convex programming") OR ("variance optimization python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder solutions in convex programming\") OR (\"variance optimization python python programming\"))".
• Removing quotes may allow a broader search: (( coder solutions in convex programming ) OR ( variance optimization python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder solutions in convex programming") OR ("variance optimization python python programming"))*.