Perhaps you should try some spelling variations:
"pre processing algorithm" » "pre modeling algorithm" (Expand Search), "pre routing algorithm" (Expand Search), "pre tracking algorithm" (Expand Search), "time processing algorithm" (Expand Search), "_ processing algorithm" (Expand Search), "rna processing algorithm" (Expand Search)
"neural coding algorithm" » "neural cosine algorithm" (Expand Search), "neural modeling algorithm" (Expand Search), "neural finding algorithm" (Expand Search)
"element cnn algorithm" » "element mean algorithm" (Expand Search), "element _ algorithm" (Expand Search), "element ii algorithm" (Expand Search), "elements cnn algorithm" (Expand Search)

Try widening your search to All Fields.

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