Perhaps you should try some spelling variations:
"coder coder complexity theory problems" » "coder code complexity theory problems" (Expand search), "coder model complexity theory problems" (Expand search), "coder lower complexity theory problems" (Expand search), "coder coder complexity theory problem" (Expand search), "coder coder complexity their problems" (Expand search), "coder coder complexity therapy problems" (Expand search), "coder decoder complexity theory problems" (Expand search), "code code complexity theory problems" (Expand search), "decoder codec complexity theory problems" (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), "rpa 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 coder complexity theory problems") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder complexity theory problems\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder complexity theory problems ) OR ( api python python python programming ))*.