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 network optimisation algorithm" » "modified network optimization algorithms", "modified network estimation algorithm", "modified network estimation algorithms", "modified network optimization algorithm", "certified network optimisation algorithm", "defined network optimisation algorithm", "modified near optimisation algorithm"

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