Perhaps you should try some spelling variations:
"elemental sampling algorithm" » "elemental mapping algorithm" (Expand Search), "elemental coupling algorithm" (Expand Search), "elemental mining algorithm" (Expand Search)
"element method algorithm" » "element network algorithm" (Expand Search), "element means algorithm" (Expand Search), "element mean algorithm" (Expand Search)
"element new algorithm" » "element novel algorithm" (Expand Search), "element _ algorithm" (Expand Search), "element te algorithm" (Expand Search), "element ree 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 new algorithm") OR ("element method algorithm"))) OR ("elemental sampling algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element new algorithm\") OR (\"element method algorithm\"))) OR (\"elemental sampling algorithm\"))".
• Removing quotes may allow a broader search: (((( element new algorithm ) OR ( element method algorithm ))) OR ( elemental sampling algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("element new algorithm") OR ("element method algorithm"))) OR ("elemental sampling algorithm"))*.