Perhaps you should try some spelling variations:
"fields using python arduino programming" » "fields using python arduino programmable" (Expand search), "fields using python radio programming" (Expand search), "fields using python learning programming" (Expand search), "fields in python arduino programming" (Expand search), "fields usando python arduino programming" (Expand search)
"python codigo python python programming" » "python coding python python programming" (Expand search), "python code python python programming" (Expand search), "python codigo pythons python programming" (Expand search), "python codigo piton python programming" (Expand search), "python codigo pitons python programming" (Expand search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"fields using python arduino programming\") OR (\"python codigo python python programming\"))~".
• Removing quotes may allow a broader search: (( fields using python arduino programming ) OR ( python codigo python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("fields using python arduino programming") OR ("python codigo python python programming"))*.