Perhaps you should try some spelling variations:
"modified parameter optimization algorithmss" » "modified parameter optimization algorithms", "modified parameter optimisation algorithm", "modified parameter estimation algorithms", "modified parameter optimization algorithmsss", "modified parameter optimisation algorithmss", "modified parameter estimation algorithmss", "modified parameters optimization algorithmss"
"modified bi1 optimization algorithm" » "modified bi1 optimization algorithms", "modified bi1 optimisation algorithm", "modified bi1 estimation algorithm", "modified _ optimization algorithm", "modified qoe optimization algorithm", "modified game optimization algorithm"

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified bi1 optimization algorithm\") OR (\"modified parameter optimization algorithmss\"))~".
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