Perhaps you should try some spelling variations:
plc programming » c programming (Expand search), block programming (Expand search), _ programming (Expand search)
python python » pythons python (Expand search), piton python (Expand search), pitons python (Expand search)
code codigo » doce codigo (Expand search), cidade codigo (Expand search), modelo codigo (Expand search)
codigo plc » codigo pl (Expand search), codigo pic (Expand search), codigo p (Expand search)
code code » code cdc (Expand search)

You may be able to get more results by adjusting your search query.

• Removing quotes may allow a broader search: (( code code codigo plc programming ) OR ( api python python python programming )).