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)
"basis using in coding program" » "basis using in cloning program" (Expand search), "basis using in loading program" (Expand search), "basis using in cooling programs" (Expand search), "basins using in coding program" (Expand search), "basin using in coding program" (Expand search), "bases using in coding program" (Expand search), "basis using on coding program" (Expand search), "basis using in decoding program" (Expand search), "basis using non coding 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: "((\"basis using in coding program\") OR (\"variance optimization python python programming\"))~".
• Removing quotes may allow a broader search: (( basis using in coding program ) OR ( variance optimization python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("basis using in coding program") OR ("variance optimization python python programming"))*.