Perhaps you should try some spelling variations:
"coder coder coding confidence regions" » "coder coder using confidence regions" (Expand search), "coder coder taking confidence regions" (Expand search), "coder coder computing confidence regions" (Expand search), "coder modern coding confidence regions" (Expand search), "coder color coding confidence regions" (Expand search), "coder odor coding confidence regions" (Expand search), "coder decoder coding confidence regions" (Expand search), "code code coding confidence regions" (Expand search), "decoder codec coding confidence regions" (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 coding confidence regions") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder coding confidence regions\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder coding confidence regions ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder coding confidence regions") OR ("api python python python programming"))*.