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

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• Performing a fuzzy search may retrieve terms with similar spellings: (("modified notion optimisation algorithmss") OR ("defined network optimisation algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified notion optimisation algorithmss\") OR (\"defined network optimisation algorithm\"))".
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