Perhaps you should try some spelling variations:
"modified stochastic optimisation algorithm" » "modified stochastic optimization algorithm", "modified static optimization algorithm", "modified stochastic configuration algorithm", "modified stochastic estimation algorithm", "modified stochastic estimation algorithms"
"modified changing optimization algorithms" » "modified changing estimation algorithms", "modified changing estimation algorithm", "modified changing optimized algorithms", "modified staffing optimization algorithms", "modified caging optimization algorithms"

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