Perhaps you should try some spelling variations:
"coder coder _ grouping problem" » "coder coder _ grouping problems" (Expand search), "coder coder _ grounding problem" (Expand search), "coder coder _ routing problem" (Expand search), "coder decoder _ grouping problem" (Expand search), "code code _ grouping problem" (Expand search), "decoder codec _ grouping 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 _ grouping problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder _ grouping problem\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder coder _ grouping problem ) OR ( api python python python programming ))*.