Perhaps you should try some spelling variations:
"element method algorithm" » "element network algorithm" (Expand Search), "element means algorithm" (Expand Search), "element mean algorithm" (Expand Search)
"data clustering algorithm" » "deep clustering algorithm" (Expand Search), "spatial clustering algorithm" (Expand Search), "dbscan clustering algorithm" (Expand Search)
"element best algorithm" » "element forest algorithm" (Expand Search), "element based algorithm" (Expand Search), "element new algorithm" (Expand Search), "element mesh algorithm" (Expand Search), "element te algorithm" (Expand Search), "element fbe algorithm" (Expand Search)

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("data clustering algorithm") OR ((("element best algorithm") OR ("element method algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"data clustering algorithm\") OR (((\"element best algorithm\") OR (\"element method algorithm\"))))".
• Removing quotes may allow a broader search: (( data clustering algorithm ) OR ((( element best algorithm ) OR ( element method algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("data clustering algorithm") OR ((("element best algorithm") OR ("element method algorithm"))))*.