Perhaps you should try some spelling variations:
"coder coder testing teaching subject" » "coder coder desing teaching subject" (Expand search), "coder coder teaching teaching subject" (Expand search), "coder coder starting teaching subject" (Expand search), "coder model testing teaching subject" (Expand search), "coder mode testing teaching subject" (Expand search), "coder cancer testing teaching subject" (Expand search), "coder decoder testing teaching subject" (Expand search), "code code testing teaching subject" (Expand search), "decoder codec testing teaching subject" (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 testing teaching subject") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder testing teaching subject\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder testing teaching subject ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder testing teaching subject") OR ("api python python python programming"))*.