Perhaps you should try some spelling variations:
"element samplingn_ algorithm" » "element sampling algorithm" (Expand Search)
"element data algorithm" » "element data algorithms" (Expand Search), "element update algorithm" (Expand Search), "element atlas algorithm" (Expand Search), "settlement data algorithm" (Expand Search), "relevant data algorithm" (Expand Search), "movement data algorithm" (Expand Search)
"element b algorithm" » "element _ algorithm" (Expand Search), "element box algorithm" (Expand Search), "element dbo algorithm" (Expand Search), "elements b algorithm" (Expand Search), "element g 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 data algorithm") OR ("element b algorithm"))) OR ("element samplingn_ algorithm"))~.
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• Removing quotes may allow a broader search: (((( element data algorithm ) OR ( element b algorithm ))) OR ( element samplingn_ algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("element data algorithm") OR ("element b algorithm"))) OR ("element samplingn_ algorithm"))*.