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