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 tree algorithms" » "element three algorithms" (Expand Search), "element other algorithms" (Expand Search), "element art algorithms" (Expand Search), "element tnew algorithms" (Expand Search), "element tem algorithms" (Expand Search), "element trf algorithms" (Expand Search), "element te algorithms" (Expand Search), "elements ree algorithms" (Expand Search), "element ore algorithms" (Expand Search)
"element ree algorithm" » "element new algorithm" (Expand Search), "element em algorithm" (Expand Search), "element rf algorithm" (Expand Search), "elements ree algorithm" (Expand Search), "element te algorithm" (Expand Search), "element mesh 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 ree algorithm") OR ("element tree algorithms"))) OR ("element matching algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element ree algorithm\") OR (\"element tree algorithms\"))) OR (\"element matching algorithm\"))".
• Removing quotes may allow a broader search: (((( element ree algorithm ) OR ( element tree algorithms ))) OR ( element matching algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("element ree algorithm") OR ("element tree algorithms"))) OR ("element matching algorithm"))*.