Perhaps you should try some spelling variations:
"coder _ python arduino programming" » "coder _ python arduino programmable" (Expand search), "coder _ python radio programming" (Expand search), "coder _ python learning programming" (Expand search)
"api pythof python python programming" » "api pythons python python programming" (Expand search), "api piton python python programming" (Expand search), "api pytm python python programming" (Expand search), "api pythof pythons python programming" (Expand search), "api pythof piton python programming" (Expand search), "api pythof pitons python programming" (Expand search), "api 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 _ python arduino programming") OR ("api pythof python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder _ python arduino programming\") OR (\"api pythof python python programming\"))".
• Removing quotes may allow a broader search: (( coder _ python arduino programming ) OR ( api pythof python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder _ python arduino programming") OR ("api pythof python python programming"))*.