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

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