Perhaps you should try some spelling variations:
"modified _ optimization algorithms" » "modified _ optimisation algorithm", "modified _ estimation algorithm", "modified _ optimized algorithms"
"modified parameters estimation algorithms" » "modified parameter estimation algorithms", "modified parameter estimates algorithms", "modified parameter optimization algorithms", "modified parameters estimation algorithm", "modified parameters optimisation algorithm", "modified parameters approximation algorithms"

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• Performing a fuzzy search may retrieve terms with similar spellings: (("modified _ optimization algorithms") OR ("modified parameters estimation algorithms"))~.
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