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

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