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

Try widening your search to All Fields.

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