Perhaps you should try some spelling variations:
"experimental best algorithm" » "experimental test algorithm" (Expand Search), "experimental tests algorithm" (Expand Search), "experimental heat algorithm" (Expand Search), "experimental forest algorithm" (Expand Search), "experimental based algorithm" (Expand Search), "experimental new algorithm" (Expand Search)
"neural coding algorithm" » "neural cosine algorithm" (Expand Search), "neural modeling algorithm" (Expand Search), "neural finding algorithm" (Expand Search)
"elements ppo algorithm" » "elements pso algorithm" (Expand Search), "elements two algorithms" (Expand Search), "elements _ algorithm" (Expand Search), "elements ppm algorithm" (Expand Search), "elements upon algorithm" (Expand Search)

Try widening your search to All Fields.

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