Perhaps you should try some spelling variations:
"modified exact optimization algorithmss" » "modified exact optimization algorithms", "modified exact optimisation algorithm", "modified exact estimation algorithms", "modified exact optimization algorithmsss", "modified exact optimisation algorithmss", "modified exact estimation algorithmss", "modified game optimization algorithmss", "modified stage optimization algorithmss"
"modified multiobjective optimization algorithm" » "modified multiobjective optimization algorithms", "modified multiobjective optimisation algorithm", "modified multiobjective estimation algorithm"

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