Perhaps you should try some spelling variations:
"modified adaptive optimization algorithmss" » "modified adaptive optimization algorithms", "modified adaptive optimisation algorithm", "modified adaptive estimation algorithms", "modified objective optimization algorithmss", "modified adaptive quantization algorithmss", "modified static optimization algorithmss", "modified passive optimization algorithmss"
"modified objective allocation algorithm" » "modified objective estimation algorithm", "modified objective evolution algorithm", "modified objective predation algorithm"

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