Perhaps you should try some spelling variations:
"element matching algorithm" » "element mining algorithm" (Expand Search), "element sampling algorithm" (Expand Search), "element tracking algorithm" (Expand Search), "element mapping algorithm" (Expand Search), "employment matching algorithm" (Expand Search), "element modeling algorithm" (Expand Search)
"element cosine algorithm" » "element colony algorithm" (Expand Search), "element fusion algorithm" (Expand Search), "element mining algorithm" (Expand Search)
"element mesh algorithm" » "element best algorithm" (Expand Search), "element mean algorithm" (Expand Search), "element means algorithm" (Expand Search), "element method algorithm" (Expand Search)

Try widening your search to All Fields.

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