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)
"elemental two algorithms" » "elemental _ algorithms" (Expand Search), "elemental ml algorithms" (Expand Search), "elemental art algorithms" (Expand Search), "elemental iron algorithms" (Expand Search), "elemental xrd algorithms" (Expand Search)
"elements cnn algorithm" » "elements _ algorithm" (Expand Search), "elements new algorithm" (Expand Search), "elements em algorithm" (Expand Search), "elements ices algorithm" (Expand Search), "elements upon algorithm" (Expand Search), "elements crcy algorithm" (Expand Search)

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("elemental two algorithms") OR ("elements cnn algorithm"))) OR ("element mapping algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"elemental two algorithms\") OR (\"elements cnn algorithm\"))) OR (\"element mapping algorithm\"))".
• Removing quotes may allow a broader search: (((( elemental two algorithms ) OR ( elements cnn algorithm ))) OR ( element mapping algorithm )).
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