Perhaps you should try some spelling variations:
"external validation python python programming" » "external evaluation python python programming" (Expand search), "external evaluations python python programming" (Expand search), "experimental validation python python programming" (Expand search), "external validation method python programming" (Expand search), "external animation python python programming" (Expand search), "external validation methods python programming" (Expand search), "external validation pythons python programming" (Expand search), "external validation piton python programming" (Expand search), "external validation pitons python programming" (Expand search)
"deep convolutional code coding program" » "deep convolutional codes coding program" (Expand search), "deep convolutional and coding program" (Expand search), "deep convolucional cnn coding program" (Expand search), "deep convolutional code cloning program" (Expand search), "deep convolutional code loading program" (Expand search), "deep convolutional code cooling programs" (Expand search), "deep convolutional code codigo program" (Expand search), "deep convolutional code according 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 convolutional code coding program") OR ("external validation python python programming"))~.
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• Removing quotes may allow a broader search: (( deep convolutional code coding program ) OR ( external validation python python programming ))*.