Perhaps you should try some spelling variations:
"element update algorithm" » "element pass algorithm" (Expand Search), "element data algorithms" (Expand Search), "element ipca algorithm" (Expand Search), "element data algorithm" (Expand Search)
"neural coding algorithm" » "neural cosine algorithm" (Expand Search), "neural modeling algorithm" (Expand Search), "neural finding algorithm" (Expand Search)
"experiments cnn algorithm" » "experiments ns algorithm" (Expand Search), "experiments when algorithm" (Expand Search), "experiments _ algorithm" (Expand Search), "experiments mean algorithm" (Expand Search), "experiments ii algorithm" (Expand Search)

Try widening your search to All Fields.

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