Perhaps you should try some spelling variations:
"modified near optimization algorithms" » "modified near optimisation algorithm", "modified near estimation algorithms", "modified near estimation algorithm", "modified network optimization algorithms", "modified stage optimization algorithms", "modified _ optimization algorithms", "modified seird optimization algorithms", "modified adam optimization algorithms"
"modified notion approximation algorithms" » "modified network approximation algorithms", "modified time approximation algorithms", "modified one approximation algorithms"

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified near optimization algorithms\") OR (\"modified notion approximation algorithms\"))~".
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