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