Perhaps you should try some spelling variations:
"element mapping algorithm" » "element making algorithm" (Expand Search), "element mining algorithm" (Expand Search), "element learning algorithm" (Expand Search), "elemental mapping algorithm" (Expand Search), "element modeling algorithm" (Expand Search), "argument mapping algorithm" (Expand Search)
"element ore algorithms" » "element tree algorithms" (Expand Search), "element art algorithms" (Expand Search), "element rl algorithms" (Expand Search), "element te algorithms" (Expand Search), "element fbe algorithms" (Expand Search), "element ree algorithms" (Expand Search)
"element based algorithm" » "engagement based 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 mapping algorithm") OR ((("element ore algorithms") OR ("element based algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"element mapping algorithm\") OR (((\"element ore algorithms\") OR (\"element based algorithm\"))))".
• Removing quotes may allow a broader search: (( element mapping algorithm ) OR ((( element ore algorithms ) OR ( element based algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("element mapping algorithm") OR ((("element ore algorithms") OR ("element based algorithm"))))*.