Perhaps you should try some spelling variations:
"modified invasive optimization algorithmssss" » "modified invasive optimisation algorithm", "modified invasive optimisation algorithmsss", "modified invasive estimation algorithmssss", "modified invasive estimation algorithmsss", "modified passive optimization algorithmssss"
"modified bayesian optimization algorithms" » "modified bayesian optimisation algorithm", "modified bayesian estimation algorithms", "modified bayesian estimation algorithm"

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