Perhaps you should try some spelling variations:
"element tracking algorithm" » "element tracking algorithms" (Expand Search), "element training algorithms" (Expand Search), "element making algorithm" (Expand Search), "movement tracking algorithm" (Expand Search), "sleep tracking algorithm" (Expand Search), "element strain algorithm" (Expand Search)
"movement data algorithm" » "movement data algorithms" (Expand Search), "movement update algorithm" (Expand Search), "movement atlas algorithm" (Expand Search)
"element em algorithm" » "element new algorithm" (Expand Search), "element _ algorithm" (Expand Search), "element ii algorithm" (Expand Search), "element ree algorithm" (Expand Search), "element g 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 em algorithm") OR ("movement data algorithm"))) OR ("element tracking algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element em algorithm\") OR (\"movement data algorithm\"))) OR (\"element tracking algorithm\"))".
• Removing quotes may allow a broader search: (((( element em algorithm ) OR ( movement data algorithm ))) OR ( element tracking algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("element em algorithm") OR ("movement data algorithm"))) OR ("element tracking algorithm"))*.