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)
"and convolution by coding program" » "and coevolution by coding program" (Expand search), "and convolutional by coding program" (Expand search), "and involution by coding program" (Expand search), "and convolution _ coding program" (Expand search), "and convolution of coding program" (Expand search), "and convolution by cloning program" (Expand search), "and convolution by loading program" (Expand search), "and convolution by cooling programs" (Expand search), "and convolution by codoping program" (Expand search), "and convolution by cooling program" (Expand search), "and convolution by coating 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: (("and convolution by coding program") OR ("variance optimization python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"and convolution by coding program\") OR (\"variance optimization python python programming\"))*".
• Removing quotes may allow a broader search: (( and convolution by coding program ) OR ( variance optimization python python programming ))*.