Perhaps you should try some spelling variations:
"modified static optimization algorithmssss" » "modified static optimization algorithms", "modified static optimisation algorithm", "modified stage optimization algorithmssss", "modified stochastic optimization algorithmssss", "modified staffing optimization algorithmssss"
"modified objective convolution algorithms" » "modified objective evolution algorithm", "modified objective solution algorithm"

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• Performing a fuzzy search may retrieve terms with similar spellings: (("modified objective convolution algorithms") OR ("modified static optimization algorithmssss"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified objective convolution algorithms\") OR (\"modified static optimization algorithmssss\"))*".
• Removing quotes may allow a broader search: (( modified objective convolution algorithms ) OR ( modified static optimization algorithmssss ))*.