Perhaps you should try some spelling variations:
"an introduction python python programming" » "an introduction section python programming" (Expand search), "an introduction earthen python programming" (Expand search), "an introduction methods python programming" (Expand search), "an introduction pythons python programming" (Expand search), "an introduction piton python programming" (Expand search), "an introduction pitons python programming" (Expand search)
"deep convolutional _ coding program" » "deep convolutional _ cloning program" (Expand search), "deep convolutional _ loading program" (Expand search), "deep convolutional _ cooling programs" (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 program\") OR (\"an introduction python python programming\"))~".
• Removing quotes may allow a broader search: (( deep convolutional _ coding program ) OR ( an introduction python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("deep convolutional _ coding program") OR ("an introduction python python programming"))*.