Perhaps you should try some spelling variations:
"implement learning algorithm" » "implement learning algorithms" (Expand Search)
"element method algorithm" » "element mould algorithm" (Expand Search)
"elements em algorithm" » "elements deer algorithm" (Expand Search), "elements _ algorithm" (Expand Search), "elementi per 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 em algorithm") OR ("element method algorithm"))) OR ("implement learning algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"elements em algorithm\") OR (\"element method algorithm\"))) OR (\"implement learning algorithm\"))".
• Removing quotes may allow a broader search: (((( elements em algorithm ) OR ( element method algorithm ))) OR ( implement learning algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("elements em algorithm") OR ("element method algorithm"))) OR ("implement learning algorithm"))*.