Perhaps you should try some spelling variations:
"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)
"code convention _ coding program" » "code conventions _ coding program" (Expand search), "code conventional _ coding program" (Expand search), "model convention _ coding program" (Expand search), "code convention _ cloning program" (Expand search), "code convention _ loading program" (Expand search), "code convention _ cooling programs" (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: (("code convention _ coding program") OR ("data visualization python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"code convention _ coding program\") OR (\"data visualization python python programming\"))".
• Removing quotes may allow a broader search: (( code convention _ coding program ) OR ( data visualization python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("code convention _ coding program") OR ("data visualization python python programming"))*.