Perhaps you should try some spelling variations:
"coder coding arduino an exercise" » "coder cutting arduino an exercise" (Expand search), "coder using arduino an exercise" (Expand search), "coder con arduino an exercise" (Expand search), "modern coding arduino an exercise" (Expand search), "color coding arduino an exercise" (Expand search), "odor coding arduino an exercise" (Expand search), "coder coding arduino and exercise" (Expand search), "coder coding arduino in exercise" (Expand search), "coder coding arduino nano exercise" (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 an exercise") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding arduino an exercise\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coding arduino an exercise ) OR ( api python python python programming ))*.