Perhaps you should try some spelling variations:
"image tracking algorithm" » "image tracking algorithms" (Expand Search), "image training algorithms" (Expand Search), "image making algorithm" (Expand Search), "time tracking algorithm" (Expand Search), "face tracking algorithm" (Expand Search), "fate tracking algorithm" (Expand Search)
"element method algorithm" » "element network algorithm" (Expand Search), "element means algorithm" (Expand Search), "element mean algorithm" (Expand Search)
"element study algorithm" » "element wsindy algorithm" (Expand Search), "element td3 algorithm" (Expand Search), "element seu algorithm" (Expand Search), "relevant study algorithm" (Expand Search), "present study algorithm" (Expand Search), "recent study algorithm" (Expand Search)

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