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