Perhaps you should try some spelling variations:
"modified parameters estimation algorithms" » "modified parameter estimation algorithms", "modified parameter estimates algorithms", "modified parameter optimization algorithms", "modified parameters estimation algorithm", "modified parameters optimization algorithms", "modified parameters optimisation algorithm"
"modified make solution algorithm" » "modified make evolution algorithm", "modified make convolution algorithms", "modified make evolutionary algorithm", "modified male solution algorithm", "modified water solution algorithm", "modified nacl solution algorithm"

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