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)
"elements rast algorithm" » "elements best algorithm" (Expand Search), "elements forest algorithm" (Expand Search), "elements based algorithm" (Expand Search), "elements res algorithm" (Expand Search), "elements wt algorithm" (Expand Search)
"elements svm algorithm" » "elements em algorithm" (Expand Search), "elements _ algorithm" (Expand Search), "elements ii algorithm" (Expand Search), "elements ppm algorithm" (Expand Search), "elements over algorithm" (Expand Search)

Try widening your search to All Fields.

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