Perhaps you should try some spelling variations:
"parameters optimisation algorithmss" » "parameters optimization algorithms", "parameters estimation algorithms", "parameters estimation algorithm", "parameter optimization algorithmss", "parameter estimation algorithmss", "parameters optimization algorithmsss", "parameters estimation algorithmss", "parameters estimation algorithmsss"
"static optimisation algorithm" » "static optimization algorithms", "static estimation algorithm", "static estimation algorithms", "static optimization algorithm", "stage optimization algorithm", "stochastic optimization algorithm"

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