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 orca optimized algorithms" » "modified orca optimized algorithm", "modified orca optimizer algorithms", "modified orca optimization algorithms", "modified dorca optimized algorithms", "modified orcad optimized algorithms", "modified ohca optimized algorithms"

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