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

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