Perhaps you should try some spelling variations:
"modified changing optimisation algorithms" » "modified changing optimization algorithms", "modified changing estimation algorithms", "modified changing estimation algorithm", "modified changing optimization algorithmss", "modified changing estimation algorithmss", "modified staffing optimization algorithms", "modified caging optimisation algorithms"
"modified bayesian optimisation algorithm" » "modified bayesian optimization algorithms", "modified bayesian estimation algorithm", "modified bayesian estimation algorithms", "modified bayesian optimization algorithm"

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