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)
"based costing in coding program" » "based costing in cloning program" (Expand search), "based costing in loading program" (Expand search), "based costing in cooling programs" (Expand search), "based coating in coding program" (Expand search), "based costing and coding program" (Expand search), "based testing in coding program" (Expand search), "based costing on coding program" (Expand search), "based costing in decoding program" (Expand search), "based costing non coding 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: (("based costing in coding program") OR ("variance optimization python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"based costing in coding program\") OR (\"variance optimization python python programming\"))".
• Removing quotes may allow a broader search: (( based costing in coding program ) OR ( variance optimization python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("based costing in coding program") OR ("variance optimization python python programming"))*.