Perhaps you should try some spelling variations:
"modified over optimisation algorithm" » "modified over optimization algorithms", "modified over estimation algorithm", "modified over estimation algorithms", "modified _ optimisation algorithm", "modified qoe optimization algorithm", "modified near optimisation algorithm", "modified orca optimisation algorithm"
"modified time approximation algorithms" » "modified one approximation algorithms", "modified _ approximation algorithms", "modified bi1 approximation algorithms", "modified male approximation algorithms"

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