Perhaps you should try some spelling variations:
"coder coder complexity channels problems" » "coder coder complexity channel problems" (Expand search), "coder coder complexity classes problems" (Expand search), "coder coder complexity chaos problems" (Expand search), "coder code complexity channels problems" (Expand search), "coder model complexity channels problems" (Expand search), "coder lower complexity channels problems" (Expand search), "coder decoder complexity channels problems" (Expand search), "code code complexity channels problems" (Expand search), "decoder codec complexity channels 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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder complexity channels problems\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder complexity channels problems ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder complexity channels problems") OR ("api python python python programming"))*.