Perhaps you should try some spelling variations:
"modified orca convolution algorithmss" » "modified orca convolution algorithms", "modified orca evolution algorithm", "modified dorca convolution algorithmss", "modified orcad convolution algorithmss", "modified ohca convolution algorithmss"
"modified multiobjective optimization algorithms" » "modified multiobjective optimisation algorithm", "modified multiobjective estimation algorithms", "modified multiobjective estimation algorithm"

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