Perhaps you should try some spelling variations:
"coder coder sampling learning problem" » "coder coder spelling learning problem" (Expand search), "coder coder sampling planning problem" (Expand search), "coder coder applying learning problem" (Expand search), "coder coder sampling learning problems" (Expand search), "coder coder sampling learning program" (Expand search), "coder under sampling learning problem" (Expand search), "coder over sampling learning problem" (Expand search), "coder core sampling learning problem" (Expand search), "coder decoder sampling learning problem" (Expand search), "code code sampling learning problem" (Expand search), "decoder codec sampling learning 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 sampling learning problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder sampling learning problem\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder sampling learning problem ) OR ( api python python python programming ))*.