Perhaps you should try some spelling variations:
"implement routine algorithm" » "implement routing algorithm" (Expand Search), "implement cosine algorithm" (Expand Search), "implement retinex algorithm" (Expand Search)
"even based algorithms" » "even based algorithm" (Expand Search), "level based algorithms" (Expand Search), "levels based algorithms" (Expand Search)
"neural coding algorithm" » "neural cosine algorithm" (Expand Search), "neural modeling algorithm" (Expand Search), "neural finding algorithm" (Expand Search)

Try widening your search to All Fields.

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