Perhaps you should try some spelling variations:
"modified passive optimisation algorithmssss" » "modified passive optimization algorithms", "modified passive optimization algorithmsssss", "modified passive estimation algorithmssss", "modified passive estimation algorithmsssss", "modified adaptive optimisation algorithmssss"
"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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