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)
"settlement data algorithm" » "settlement jaya algorithm" (Expand Search), "settlement deer algorithm" (Expand Search)
"complements ppo algorithm" » "complements rd algorithm" (Expand Search), "complement ppo algorithm" (Expand Search), "complemented ppo algorithm" (Expand Search), "implements ppo algorithm" (Expand Search)

Try widening your search to All Fields.

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