Perhaps you should try some spelling variations:
"modified multiobjective optimization algorithm" » "modified multiobjective optimization algorithms", "modified multiobjective optimisation algorithm", "modified multiobjective estimation algorithm"
"modified nacl evolution algorithm" » "modified nacl solution algorithm", "modified nacl evolutionary algorithm", "modified nacl convolution algorithms", "modified early evolution algorithm", "modified co evolution algorithm", "modified male evolution algorithm", "modified near evolution algorithm", "modified orca evolution algorithm"

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