Perhaps you should try some spelling variations:
"attributed optimization algorithmsss" » "attributed optimisation algorithm", "attributed estimation algorithms", "attributed optimisation algorithmss", "attributed estimation algorithmsss", "attributed estimation algorithmss", "attribute optimization algorithmsss"
"parameters optimization algorithms" » "parameter optimization algorithms", "parameter estimation algorithms", "parameters optimisation algorithm", "parameters estimation algorithms", "parameters estimation algorithm"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("parameters optimization algorithms") or ("attributed optimization algorithmsss"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("parameters optimization algorithms") OR ("attributed optimization algorithmsss")).
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