Perhaps you should try some spelling variations:
"modified multiobjective optimisation algorithm" » "modified multiobjective optimization algorithm", "modified objective optimization algorithm", "modified multiobjective estimation algorithm", "modified multiobjective estimation algorithms"
"modified dorca optimization algorithms" » "modified dorca estimation algorithms", "modified dorca estimation algorithm", "modified dorca optimized algorithms", "modified policy optimization algorithms", "modified qoe optimization algorithms", "modified orca optimization algorithms"

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