Perhaps you should try some spelling variations:
"coder decoder data clustering problem" » "coder decoder data covering problem" (Expand search), "encoder decoder data clustering problem" (Expand search), "coder decidir data clustering problem" (Expand search), "coder disorder data clustering problem" (Expand search), "coder cover data clustering 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 decoder data clustering problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder decoder data clustering problem\") OR (\"api python python python programming\"))*".
• Removing quotes may allow a broader search: (( coder decoder data clustering problem ) OR ( api python python python programming ))*.