Perhaps you should try some spelling variations:
"coder and arduino microcontroller arduino" » "coder and arduino microcontrolador arduino" (Expand search), "coder an arduino microcontroller arduino" (Expand search), "coder usando arduino microcontroller arduino" (Expand search), "code and arduino microcontroller arduino" (Expand search), "codes and arduino microcontroller arduino" (Expand search), "poder and arduino microcontroller arduino" (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 and arduino microcontroller arduino") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder and arduino microcontroller arduino\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder and arduino microcontroller arduino ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder and arduino microcontroller arduino") OR ("api python python python programming"))*.