Perhaps you should try some spelling variations:
"coder coding arduino microcomputer problems" » "coder coding using microcomputer problems" (Expand search), "coder cutting arduino microcomputer problems" (Expand search), "coder using arduino microcomputer problems" (Expand search), "coder con arduino microcomputer problems" (Expand search), "modern coding arduino microcomputer problems" (Expand search), "color coding arduino microcomputer problems" (Expand search), "odor coding arduino microcomputer problems" (Expand search)
"api python python python programming" » "api pythons python python programming" (Expand search), "api piton python python programming" (Expand search), "api pitons python python programming" (Expand search), "rpa python python 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 coding arduino microcomputer problems") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding arduino microcomputer problems\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coding arduino microcomputer problems ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coding arduino microcomputer problems") OR ("api python python python programming"))*.