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)
"elements upon algorithm" » "elements ppo algorithm" (Expand Search), "elements fusion algorithm" (Expand Search), "elements pso algorithm" (Expand Search), "elements ppm algorithm" (Expand Search)
"elemental cnn algorithm" » "elemental iron algorithm" (Expand Search), "elemental zinc algorithm" (Expand Search), "elemental xrd algorithm" (Expand Search), "elemental _ algorithm" (Expand Search), "elemental new algorithm" (Expand Search), "elemental em algorithm" (Expand Search)

Try widening your search to All Fields.

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