Perhaps you should try some spelling variations:
"deep convolutional coding using program" » "deep convolutional codes using program" (Expand search), "deep convolutional code using program" (Expand search), "deep convolutional long using program" (Expand search), "deep convolutional coding housing program" (Expand search), "deep convolutional coding nursing program" (Expand search), "deep convolutional coding aging program" (Expand search), "deep convolutional loading using program" (Expand search), "deep convolutional modeling using program" (Expand search), "deep convolutional drying using program" (Expand search)
"negative refraction python python programming" » "negative refractive python python programming" (Expand search), "negative reactions python python programming" (Expand search), "negative selection python python programming" (Expand search), "negative refraction method python programming" (Expand search), "negative refraction with python programming" (Expand search), "negative refraction to python programming" (Expand search), "negative refraction pythons python programming" (Expand search), "negative refraction piton python programming" (Expand search), "negative refraction pitons python programming" (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: "((\"deep convolutional coding using program\") OR (\"negative refraction python python programming\"))~".
• Removing quotes may allow a broader search: (( deep convolutional coding using program ) OR ( negative refraction python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("deep convolutional coding using program") OR ("negative refraction python python programming"))*.