Perhaps you should try some spelling variations:
"variance optimization from python programming" » "surface optimization from python programming" (Expand search), "engine optimization from python programming" (Expand search), "value optimization from python programming" (Expand search), "variance optimization and python programming" (Expand search), "variance optimization _ python programming" (Expand search), "variance optimization by python programming" (Expand search), "variance optimization from pathogen programming" (Expand search), "variance optimization from anthony programming" (Expand search)
"and conventional coding coding program" » "and conventional cooling coding program" (Expand search), "and conventional loading coding program" (Expand search), "and conventional cooking coding program" (Expand search), "and conventional coding cloning program" (Expand search), "and conventional coding loading program" (Expand search), "and conventional coding cooling programs" (Expand search), "and conventional coding decoding program" (Expand search), "and conventional coding using program" (Expand search), "and conventional coding canine program" (Expand search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"and conventional coding coding program\") OR (\"variance optimization from python programming\"))~".
• Removing quotes may allow a broader search: (( and conventional coding coding program ) OR ( variance optimization from python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("and conventional coding coding program") OR ("variance optimization from python programming"))*.