Perhaps you should try some spelling variations:
"coder decoder python arduino programming" » "coder decoder python arduino programmable" (Expand search), "coder decoder python radio programming" (Expand search), "coder decoder python learning programming" (Expand search), "encoder decoder python arduino programming" (Expand search)
"api pitoes python python programming" » "api pitons python python programming" (Expand search), "api piton python python programming" (Expand search), "api pythons python python programming" (Expand search), "api pitoes pythons python programming" (Expand search), "api pitoes piton python programming" (Expand search), "api pitoes 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: "((\"coder decoder python arduino programming\") OR (\"api pitoes python python programming\"))~".
• Removing quotes may allow a broader search: (( coder decoder python arduino programming ) OR ( api pitoes python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder decoder python arduino programming") OR ("api pitoes python python programming"))*.