Perhaps you should try some spelling variations:
"modified bayesian optimisation algorithm" » "modified bayesian optimization algorithms", "modified bayesian estimation algorithm", "modified bayesian estimation algorithms", "modified bayesian optimization algorithm"
"modified adam estimation algorithmss" » "modified adam estimation algorithms", "modified adam estimation algorithm", "modified adam optimization algorithms", "modified df estimation algorithmss", "modified near estimation algorithmss"

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