Perhaps you should try some spelling variations:
"coder coder vector machine problem" » "coder coder vector matching problem" (Expand search), "coder coder vector teaching problem" (Expand search), "coder coder vector teaching problems" (Expand search), "coder under vector machine problem" (Expand search), "coder model vector machine problem" (Expand search), "coder order vector machine problem" (Expand search), "coder decoder vector machine problem" (Expand search), "code code vector machine problem" (Expand search), "decoder codec vector machine problem" (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 vector machine problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder vector machine problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder vector machine problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder vector machine problem") OR ("api python python python programming"))*.