Perhaps you should try some spelling variations:
"coder representation _ visual programing" » "modern representation _ visual programing" (Expand search), "border representation _ visual programing" (Expand search), "under representation _ visual programing" (Expand search), "coder representation _ visual programming" (Expand search), "coder representation _ virtual programming" (Expand search), "coder representation _ visual programa" (Expand search)
"python coding python python programming" » "action coding python python programming" (Expand search), "python code python python programming" (Expand search), "python codigo python python programming" (Expand search), "python codigos python python programming" (Expand search), "python using python python programming" (Expand search), "python coding pythons python programming" (Expand search), "python coding piton python programming" (Expand search), "python coding pitons python programming" (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: (("coder representation _ visual programing") OR ("python coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder representation _ visual programing\") OR (\"python coding python python programming\"))".
• Removing quotes may allow a broader search: (( coder representation _ visual programing ) OR ( python coding python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder representation _ visual programing") OR ("python coding python python programming"))*.