Perhaps you should try some spelling variations:
"modified notion optimization algorithmssss" » "modified notion optimization algorithms", "modified notion optimisation algorithm", "modified network optimization algorithmssss", "modified policy optimization algorithmssss", "modified allocation optimization algorithmssss"
"modified quadratic estimation algorithms" » "modified quadratic estimation algorithm", "modified quadratic optimization algorithms", "modified quadratic optimisation algorithm", "modified quantile estimation algorithms"

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