Perhaps you should try some spelling variations:
"of convolutional coding _ program" » "of convolutional codes _ program" (Expand search), "of convolutional code _ program" (Expand search), "of convolutional long _ program" (Expand search), "of conventional coding _ program" (Expand search), "deep convolutional coding _ program" (Expand search), "of constitutional coding _ program" (Expand search)
"data visualization python python programming" » "data visualization method python programming" (Expand search), "data visualization methods python programming" (Expand search), "data visualization tool python programming" (Expand search), "data visualization pythons python programming" (Expand search), "data visualization piton python programming" (Expand search), "data visualization 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: "((\"of convolutional coding _ program\") OR (\"data visualization python python programming\"))~".
• Removing quotes may allow a broader search: (( of convolutional coding _ program ) OR ( data visualization python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("of convolutional coding _ program") OR ("data visualization python python programming"))*.