Perhaps you should try some spelling variations:
"coder coder _ circuits programming" » "coder coder _ circular programming" (Expand search), "coder coder _ circuits programmables" (Expand search), "coder coder _ robots programming" (Expand search), "coder decoder _ circuits programming" (Expand search), "code code _ circuits programming" (Expand search), "decoder codec _ circuits programming" (Expand search)
"on python python python programming" » "on pythons python python programming" (Expand search), "on piton python python programming" (Expand search), "on pitons python python programming" (Expand search), "in python pythin python programming" (Expand search), "of python pythof python programming" (Expand search), "_ python pyth_ 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 coder _ circuits programming") OR ("on python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder _ circuits programming\") OR (\"on python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder _ circuits programming ) OR ( on python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder _ circuits programming") OR ("on python python python programming"))*.