Perhaps you should try some spelling variations:
"modified network optimization algorithmss" » "modified network optimisation algorithm", "modified network estimation algorithms", "modified network estimation algorithm", "modified network optimisation algorithms", "modified network estimation algorithmss", "certified network optimization algorithmss", "defined network optimization algorithmss", "modified near optimization algorithmss"
"modified objective optimization algorithms" » "modified objective optimisation algorithm", "modified objective estimation algorithms", "modified objective estimation algorithm", "modified multiobjective optimization algorithms"

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