Perhaps you should try some spelling variations:
"variance optimization in python programming" » "surface optimization in python programming" (Expand search), "engine optimization in python programming" (Expand search), "value optimization in python programming" (Expand search), "variance optimization and python programming" (Expand search), "variance optimization _ python programming" (Expand search)
"advanced aplication in computer programa" » "advanced application in computer programa" (Expand search), "advanced applications in computer programa" (Expand search), "advanced glication in computer programa" (Expand search), "advanced aplication in computer program" (Expand search), "advanced aplication in computer programs" (Expand search), "advanced aplication in computer programme" (Expand search), "advanced replication in computer programa" (Expand search), "advanced implication in computer programa" (Expand search), "advanced aplication _ computer programa" (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: "((\"variance optimization in python programming\") OR (\"advanced aplication in computer programa\"))~".
• Removing quotes may allow a broader search: (( variance optimization in python programming ) OR ( advanced aplication in computer programa ))~.
• Adding a wildcard symbol may retrieve word variants: (("variance optimization in python programming") OR ("advanced aplication in computer programa"))*.