Perhaps you should try some spelling variations:
"modified notion optimization algorithmss" » "modified notion optimization algorithms", "modified notion optimisation algorithm", "modified notion estimation algorithm", "modified network optimization algorithmss", "modified policy optimization algorithmss", "modified allocation optimization algorithmss"
"modified static estimation algorithms" » "modified static estimation algorithm", "modified static optimization algorithms", "modified static optimisation algorithm"

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