Perhaps you should try some spelling variations:
"coder documentation in ros programming" » "model documentation in ros programming" (Expand search), "car documentation in ros programming" (Expand search), "care documentation in ros programming" (Expand search), "coder documentation and ros programming" (Expand search), "coder documentation of ros programming" (Expand search), "coder documentation in arts programming" (Expand search), "coder documentation in cost programming" (Expand search), "coder documentation in go programming" (Expand search), "coder documentation in rose programming" (Expand search), "coder documentation in rosa programming" (Expand search), "coder documentation in rows programming" (Expand search)
"python coding python python programming" » "python codigo python python programming" (Expand search), "action coding python python programming" (Expand search), "python code 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 documentation in ros programming") OR ("python coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder documentation in ros programming\") OR (\"python coding python python programming\"))".
• Removing quotes may allow a broader search: (( coder documentation in ros programming ) OR ( python coding python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder documentation in ros programming") OR ("python coding python python programming"))*.