Perhaps you should try some spelling variations:
"modified bayesian optimization algorithmss" » "modified bayesian optimization algorithms", "modified bayesian optimisation algorithm", "modified bayesian estimation algorithms"
"designed network estimation algorithm" » "designed network optimization algorithm", "defined network estimation algorithm"

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"designed network estimation algorithm\") OR (\"modified bayesian optimization algorithmss\"))~".
• Removing quotes may allow a broader search: (( designed network estimation algorithm ) OR ( modified bayesian optimization algorithmss ))~.
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