Perhaps you should try some spelling variations:
"element sampling algorithm" » "element scheduling algorithm" (Expand Search), "elements sampling algorithm" (Expand Search)
"element model algorithms" » "element mould algorithm" (Expand Search), "elements model algorithms" (Expand Search)
"element data algorithm" » "element jaya algorithm" (Expand Search), "element deer algorithm" (Expand Search), "elements data 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 model algorithms") OR ("element data algorithm"))) OR ("element sampling algorithm"))~.
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• Removing quotes may allow a broader search: (((( element model algorithms ) OR ( element data algorithm ))) OR ( element sampling algorithm )).
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