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

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