Perhaps you should try some spelling variations:
"closed string _ algorithm in" » "closed strings _ algorithm in" (Expand search), "closest string _ algorithm in" (Expand search), "closed springs _ algorithm in" (Expand search), "closed string _ algorithm and" (Expand search), "closed string _ algorithm _" (Expand search), "closed string _ algorithm with" (Expand search)
"rpa python python python programming" » "rpa pythons python python programming" (Expand search), "rpa piton python python programming" (Expand search), "rpa pitons python python programming" (Expand search), "via python python python programming" (Expand search), "api 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: (("closed string _ algorithm in") OR ("rpa python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"closed string _ algorithm in\") OR (\"rpa python python python programming\"))".
• Removing quotes may allow a broader search: (( closed string _ algorithm in ) OR ( rpa python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("closed string _ algorithm in") OR ("rpa python python python programming"))*.