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)
"deep convolution on coding program" » "deep convolutional on coding program" (Expand search), "deep convection on coding program" (Expand search), "beam convolution on coding program" (Expand search), "deep convolution of coding program" (Expand search), "deep convolution and coding program" (Expand search), "deep convolution _ coding program" (Expand search), "deep convolution on cloning program" (Expand search), "deep convolution on loading program" (Expand search), "deep convolution on cooling programs" (Expand search), "deep convolution 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: (("deep convolution on coding program") OR ("variance optimization python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"deep convolution on coding program\") OR (\"variance optimization python python programming\"))".
• Removing quotes may allow a broader search: (( deep convolution on coding program ) OR ( variance optimization python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("deep convolution on coding program") OR ("variance optimization python python programming"))*.