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

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"parameter optimisation algorithm\") OR (\"attributed optimisation algorithmss\"))~".
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