Perhaps you should try some spelling variations:
"rpa python python python programming" » "rpa pythons python python programming" (Expand search), "rpa piton python python programming" (Expand search), "rpa pitons python python programming" (Expand search), "via python python python programming" (Expand search), "api python python python programming" (Expand search)
"coder using arduino board using" » "coders using arduino board using" (Expand search), "cover using arduino board using" (Expand search), "code using arduino board using" (Expand search), "coder using arduino boards using" (Expand search), "coder using arduino boar using" (Expand search), "coder using arduino toward using" (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 using arduino board using") OR ("rpa python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder using arduino board using\") OR (\"rpa python python python programming\"))".
• Removing quotes may allow a broader search: (( coder using arduino board using ) OR ( rpa python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder using arduino board using") OR ("rpa python python python programming"))*.