Perhaps you should try some spelling variations:
"modified response optimization algorithmss" » "modified response optimisation algorithm", "modified response estimation algorithms", "modified response estimation algorithm", "modified response optimisation algorithms", "modified response estimation algorithmss"
"modified parameter optimization algorithms" » "modified parameter optimisation algorithm", "modified parameter estimation algorithms", "modified parameter estimation algorithm", "modified parameters optimization algorithms"

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified response optimization algorithmss\") OR (\"modified parameter optimization algorithms\"))~".
• Removing quotes may allow a broader search: (( modified response optimization algorithmss ) OR ( modified parameter optimization algorithms ))~.
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