Perhaps you should try some spelling variations:
"neural coding algorithm" » "neural cosine algorithm" (Expand Search), "neural colony algorithm" (Expand Search), "neural scheduling algorithm" (Expand Search)
"elements ppo algorithm" » "elements rd algorithm" (Expand Search), "elements _ algorithm" (Expand Search), "elementi per algorithm" (Expand Search)
"experiments tree algorithms" » "experimental tree algorithms" (Expand Search), "experiments three algorithms" (Expand Search), "experiments free algorithms" (Expand Search)

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("experiments tree algorithms") OR ("elements ppo algorithm"))) OR ("neural coding algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"experiments tree algorithms\") OR (\"elements ppo algorithm\"))) OR (\"neural coding algorithm\"))".
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