Perhaps you should try some spelling variations:
"modified caging optimization algorithmss" » "modified caging optimization algorithms", "modified caging optimisation algorithm", "modified caging estimation algorithms", "modified caging optimization algorithmsss", "modified caging optimisation algorithmss", "modified caging estimation algorithmss", "modified staffing optimization algorithmss"
"modified stochastic optimization algorithm" » "modified stochastic optimization algorithms", "modified stochastic optimisation algorithm", "modified stochastic estimation algorithm"

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