Perhaps you should try some spelling variations:
"element tracking algorithm" » "element learning algorithm" (Expand Search), "element processing algorithm" (Expand Search), "movement tracking algorithm" (Expand Search), "sleep tracking algorithm" (Expand Search), "element mapping algorithm" (Expand Search)
"elements cnn algorithm" » "elements _ algorithm" (Expand Search), "elements new algorithm" (Expand Search), "elements em algorithm" (Expand Search), "elements ices algorithm" (Expand Search), "elements upon algorithm" (Expand Search), "elements crcy algorithm" (Expand Search)
"elements ii algorithm" » "elements _ algorithm" (Expand Search), "elements em algorithm" (Expand Search), "elements new algorithm" (Expand Search), "elements b algorithm" (Expand Search), "elements wt 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 cnn algorithm") OR ("elements ii algorithm"))) OR ("element tracking algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"elements cnn algorithm\") OR (\"elements ii algorithm\"))) OR (\"element tracking algorithm\"))".
• Removing quotes may allow a broader search: (((( elements cnn algorithm ) OR ( elements ii algorithm ))) OR ( element tracking algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("elements cnn algorithm") OR ("elements ii algorithm"))) OR ("element tracking algorithm"))*.