Perhaps you should try some spelling variations:
"modified qoe estimation algorithmss" » "modified qoe estimation algorithms", "modified qoe estimation algorithm", "modified qoe optimization algorithms", "modified pose estimation algorithmss", "modified _ estimation algorithmss", "modified cover estimations algorithmss", "modified male estimation algorithmss", "modified bi1 estimation algorithmss"
"modified multiobjective optimization algorithm" » "modified multiobjective optimization algorithms", "modified multiobjective optimisation algorithm", "modified multiobjective estimation algorithm"

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