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 solution with cosine program" » "code solution with cosine program" (Expand search), "powder solution with cosine program" (Expand search), "copper solution with cosine program" (Expand search), "coder solution with online program" (Expand search), "coder solution with one program" (Expand search), "coder solution with course program" (Expand search), "coder solutions with cosine program" (Expand search), "coder solution with cocaine program" (Expand search), "coder solution with lysine program" (Expand search), "coder solution with combined program" (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 solution with cosine program") OR ("variance optimization python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder solution with cosine program\") OR (\"variance optimization python python programming\"))".
• Removing quotes may allow a broader search: (( coder solution with cosine program ) OR ( variance optimization python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder solution with cosine program") OR ("variance optimization python python programming"))*.