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 objective optimization algorithm" » "modified multiobjective optimization algorithm", "modified objective optimization algorithms", "modified objective estimation algorithm", "modified objective estimation algorithms"

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