Perhaps you should try some spelling variations:
"modified parameter optimisation algorithmsss" » "modified parameter optimization algorithms", "modified parameter estimation algorithms", "modified parameter optimization algorithmsss", "modified parameter estimation algorithmsss", "modified parameter optimization algorithmssss", "modified parameter estimation 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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