Perhaps you should try some spelling variations:
"modified passive optimization algorithms" » "modified passive optimisation algorithm", "modified passive estimation algorithms", "modified passive estimation algorithm", "modified passive optimisation algorithms", "modified passive estimation algorithmss", "modified bayesian optimization algorithms", "modified game optimization algorithms", "modified policy optimization algorithms", "modified adaptive optimization algorithms"
"modified stochastic optimization algorithm" » "modified stochastic optimisation algorithm", "modified stochastic estimation algorithm", "modified stochastic estimation algorithms"

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