Perhaps you should try some spelling variations:
"element mapping algorithm" » "element sampling algorithm" (Expand Search), "element matching algorithm" (Expand Search), "element mining algorithm" (Expand Search), "elemental mapping algorithm" (Expand Search), "element modeling algorithm" (Expand Search)
"element zinc algorithm" » "element ii algorithm" (Expand Search), "element cnn algorithm" (Expand Search), "element hip algorithm" (Expand Search), "elemental zinc algorithm" (Expand Search)
"element iii algorithm" » "element ii algorithm" (Expand Search), "element _ algorithm" (Expand Search), "element new algorithm" (Expand Search), "element limit 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 zinc algorithm") OR ("element iii algorithm"))) OR ("element mapping algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element zinc algorithm\") OR (\"element iii algorithm\"))) OR (\"element mapping algorithm\"))".
• Removing quotes may allow a broader search: (((( element zinc algorithm ) OR ( element iii algorithm ))) OR ( element mapping algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("element zinc algorithm") OR ("element iii algorithm"))) OR ("element mapping algorithm"))*.