Perhaps you should try some spelling variations:
"modified quantile optimization algorithmssss" » "modified quantile optimization algorithms", "modified quantile optimisation algorithm", "modified quantile estimation algorithmssss", "modified quadratic optimization algorithmssss", "modified static optimization algorithmssss", "modified adaptive optimization algorithmssss"
"modified bayesian estimation algorithm" » "modified bayesian optimization algorithm"

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• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified bayesian estimation algorithm") OR ("modified quantile optimization algorithmssss"))~.
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