Perhaps you should try some spelling variations:
"modified stochastic optimisation algorithmss" » "modified stochastic optimisation algorithm", "modified stochastic optimization algorithms", "modified stochastic estimation algorithm", "modified stochastic optimization algorithmss", "modified static optimization algorithmss", "modified stochastic configuration algorithmss"
"modified objective estimation algorithms" » "modified objective estimation algorithm", "modified objective optimization algorithms", "modified objective optimisation algorithm", "modified objective allocation algorithms"

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