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 three algorithms" » "element forest algorithms" (Expand Search), "element based algorithms" (Expand Search), "element art algorithms" (Expand Search), "element thtree algorithms" (Expand Search), "element thrl algorithms" (Expand Search), "element thde algorithms" (Expand Search), "element te algorithms" (Expand Search), "element ore algorithms" (Expand Search), "elements ree algorithms" (Expand Search)
"element ree algorithms" » "element tree algorithms" (Expand Search), "element rl algorithms" (Expand Search), "element de algorithms" (Expand Search), "elements ree algorithms" (Expand Search), "elements res algorithms" (Expand Search), "element te algorithms" (Expand Search)

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("element ree algorithms") OR ("element three algorithms"))) OR ("element mapping algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"element ree algorithms\") OR (\"element three algorithms\"))) OR (\"element mapping algorithm\"))".
• Removing quotes may allow a broader search: (((( element ree algorithms ) OR ( element three algorithms ))) OR ( element mapping algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("element ree algorithms") OR ("element three algorithms"))) OR ("element mapping algorithm"))*.