Perhaps you should try some spelling variations:
"coder coder and authentication protocol" » "coder coder user authentication protocol" (Expand search), "coder coder and authenticity protocol" (Expand search), "coder coder and authorization protocol" (Expand search), "coder decoder and authentication protocol" (Expand search), "code code and authentication protocol" (Expand search), "decoder codec and authentication protocol" (Expand search), "coder code and authentication protocol" (Expand search), "coder codes and authentication protocol" (Expand search), "coder poder and authentication protocol" (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 and authentication protocol") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder and authentication protocol\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder and authentication protocol ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder and authentication protocol") OR ("api python python python programming"))*.