Perhaps you should try some spelling variations:
"modified robust optimisation algorithmsssss" » "modified robust optimization algorithms", "modified robust optimization algorithmssssss", "modified robust estimation algorithmsssss", "modified robust estimation algorithmssssss", "modified robust optimization algorithmsssss"
"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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