Perhaps you should try some spelling variations:
"selective extraction python python programming" » "selective oxidation python python programming" (Expand search), "sorptive extraction python python programming" (Expand search), "selective collection python python programming" (Expand search), "selective extraction method python programming" (Expand search), "selective extraction option python programming" (Expand search), "selective extraction methods python programming" (Expand search), "selective extraction pythons python programming" (Expand search), "selective extraction piton python programming" (Expand search), "selective extraction pitons python programming" (Expand search)
"_ convolutional code coding program" » "_ convolutional codes coding program" (Expand search), "_ convolutional and coding program" (Expand search), "_ convolucional cnn coding program" (Expand search), "_ convolutional code cloning program" (Expand search), "_ convolutional code loading program" (Expand search), "_ convolutional code cooling programs" (Expand search), "_ convolutional code codigo program" (Expand search), "_ convolutional code according 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: "((\"_ convolutional code coding program\") OR (\"selective extraction python python programming\"))~".
• Removing quotes may allow a broader search: (( _ convolutional code coding program ) OR ( selective extraction python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("_ convolutional code coding program") OR ("selective extraction python python programming"))*.