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

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• Removing quotes may allow a broader search: (( modified notion estimation algorithmsss ) OR ( modified parameter optimization algorithm ))~.
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