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

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