Perhaps you should try some spelling variations:
"modified parameter optimization algorithms" » "modified parameter estimation algorithms", "modified parameter estimation algorithm", "modified parameter optimized algorithms", "modified parameters optimization algorithms"
"modified game optimisation algorithm" » "modified game estimation algorithm", "modified game estimation algorithms", "modified game optimization algorithm", "modified stage optimization algorithm", "modified _ optimisation algorithm", "modified male optimisation algorithm", "modified adam optimisation algorithm"

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