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 novel algorithm" » "elements forest algorithm" (Expand Search), "elements over algorithm" (Expand Search), "element model algorithm" (Expand Search), "elements involved algorithm" (Expand Search)
"elements cnn algorithm" » "elements mean algorithm" (Expand Search), "elements _ algorithm" (Expand Search), "elements ii algorithm" (Expand Search), "elements crcy algorithm" (Expand Search), "elements ices algorithm" (Expand Search), "elements upon algorithm" (Expand Search)

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