Perhaps you should try some spelling variations:
"modified static optimization algorithmss" » "modified static optimization algorithms", "modified static optimisation algorithm", "modified static estimation algorithms", "modified stage optimization algorithmss", "modified stochastic optimization algorithmss", "modified staffing optimization algorithmss"
"modified objective allocation algorithm" » "modified objective estimation algorithm", "modified objective evolution algorithm", "modified objective predation algorithm"

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified static optimization algorithmss\") OR (\"modified objective allocation algorithm\"))~".
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