Perhaps you should try some spelling variations:
"modified parameter optimization algorithms" » "modified parameter optimisation algorithm", "modified parameter estimation algorithms", "modified parameter estimation algorithm", "modified parameters optimization algorithms"
"modified network optimizer algorithmss" » "modified network optimizer algorithms", "modified network optimized algorithms", "modified network optimized algorithm", "modified network optimization algorithmss", "certified network optimizer algorithmss", "defined network optimizer algorithmss", "modified near optimizer algorithmss"

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