Perhaps you should try some spelling variations:
"element modeling algorithm" » "element scheduling algorithm" (Expand Search)
"data boosting algorithm" » "data cosine algorithm" (Expand Search)
"element de algorithms" » "element _ algorithms" (Expand Search), "element deer algorithm" (Expand Search), "element rd algorithm" (Expand Search), "elementi per algorithms" (Expand Search)

Try widening your search to All Fields.

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