Perhaps you should try some spelling variations:
"modified allocation optimization algorithmss" » "modified allocation optimization algorithms", "modified allocation optimisation algorithm", "modified allocation estimation algorithms", "modified allocation optimization algorithmsss", "modified allocation optimisation algorithmss", "modified allocation estimation algorithmss", "modified location optimization algorithmss"
"modified response optimization algorithm" » "modified response optimization algorithms", "modified response optimisation algorithm", "modified response estimation algorithm"

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