Perhaps you should try some spelling variations:
"modified notion optimization algorithmssss" » "modified notion optimisation algorithm", "modified notion optimisation algorithmsss", "modified notion estimation algorithmssss", "modified notion estimation algorithmsss", "modified network optimization algorithmssss", "modified policy optimization algorithmssss", "modified allocation optimization algorithmssss"
"modified robust optimization algorithms" » "modified robust optimisation algorithm", "modified robust estimation algorithms", "modified robust estimation algorithm"

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