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 content in decoding program" » "based content in welcoming program" (Expand search), "based content in deworming program" (Expand search), "based content in feeding program" (Expand search), "based conjoint in decoding program" (Expand search), "based costing in decoding program" (Expand search), "based control in decoding program" (Expand search), "based content and decoding program" (Expand search), "based content _ decoding program" (Expand search), "based content in decaying 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: "((\"based content in decoding program\") OR (\"variance optimization python python programming\"))~".
• Removing quotes may allow a broader search: (( based content in decoding program ) OR ( variance optimization python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("based content in decoding program") OR ("variance optimization python python programming"))*.