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

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