Perhaps you should try some spelling variations:
"element boosting algorithm" » "element cosine algorithm" (Expand Search), "element clustering algorithm" (Expand Search), "element processing algorithm" (Expand Search), "element bonding algorithm" (Expand Search), "element modeling algorithm" (Expand Search)
"element means algorithm" » "element search algorithm" (Expand Search), "element mesh algorithm" (Expand Search)
"element each algorithm" » "element search algorithm" (Expand Search), "element em algorithm" (Expand Search), "element data algorithm" (Expand Search), "element mesh 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 boosting algorithm") OR ((("element each algorithm") OR ("element means algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"element boosting algorithm\") OR (((\"element each algorithm\") OR (\"element means algorithm\"))))".
• Removing quotes may allow a broader search: (( element boosting algorithm ) OR ((( element each algorithm ) OR ( element means algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("element boosting algorithm") OR ((("element each algorithm") OR ("element means algorithm"))))*.