Perhaps you should try some spelling variations:
"coder representation on robotic programming" » "modern representation on robotic programming" (Expand search), "border representation on robotic programming" (Expand search), "under representation on robotic programming" (Expand search), "coder representation on robotics programming" (Expand search), "coder representation on robots programming" (Expand search), "coder representation on robot programming" (Expand search), "coder representations on robotic programming" (Expand search), "coder representation of robotic programming" (Expand search), "coder representation and robotic programming" (Expand search), "coder representation in robotic programming" (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 on robotic programming") OR ("python coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder representation on robotic programming\") OR (\"python coding python python programming\"))".
• Removing quotes may allow a broader search: (( coder representation on robotic programming ) OR ( python coding python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder representation on robotic programming") OR ("python coding python python programming"))*.