Perhaps you should try some spelling variations:
"coder coder closed strings problem" » "coder coder closed string problem" (Expand search), "coder coder closed waring's problem" (Expand search), "coder coder closed sharing problem" (Expand search), "coder coder closed springs problem" (Expand search), "coder coder closest string problem" (Expand search), "coder border closed strings problem" (Expand search), "coder model closed strings problem" (Expand search), "coder over closed strings problem" (Expand search), "coder decoder closed strings problem" (Expand search), "code code closed strings problem" (Expand search), "decoder codec closed strings 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 closed strings problem") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coder closed strings problem\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coder closed strings problem ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coder closed strings problem") OR ("api python python python programming"))*.