Perhaps you should try some spelling variations:
"variance optimization on python programming" » "surface optimization on python programming" (Expand search), "engine optimization on python programming" (Expand search), "value optimization on python programming" (Expand search), "variance optimization of python programming" (Expand search), "variance optimization and python programming" (Expand search), "variance optimization _ python programming" (Expand search), "variance optimization in python programming" (Expand search)
"based convolutional coding coding program" » "based convolutional codes coding program" (Expand search), "based convolutional code coding program" (Expand search), "based convolutional long coding program" (Expand search), "and convolutional coding coding program" (Expand search), "deep convolutional coding coding program" (Expand search), "2d convolutional coding coding program" (Expand search), "based convolutional coding cloning program" (Expand search), "based convolutional coding loading program" (Expand search), "based convolutional coding cooling programs" (Expand search), "based convolutional coding decoding program" (Expand search), "based convolutional coding using program" (Expand search), "based convolutional coding canine 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 convolutional coding coding program") OR ("variance optimization on python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"based convolutional coding coding program\") OR (\"variance optimization on python programming\"))*".
• Removing quotes may allow a broader search: (( based convolutional coding coding program ) OR ( variance optimization on python programming ))*.