Perhaps you should try some spelling variations:
"modified over optimisation algorithm" » "modified over optimization algorithms", "modified over estimation algorithm", "modified over estimation algorithms", "modified _ optimisation algorithm", "modified qoe optimization algorithm", "modified near optimisation algorithm", "modified orca optimisation algorithm"
"modified multiobjective optimization algorithm" » "modified multiobjective optimization algorithms", "modified multiobjective estimation algorithm", "modified multiobjective estimation algorithms"

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