Perhaps you should try some spelling variations:
"modified aging optimisation algorithms" » "modified aging optimization algorithms", "modified aging estimation algorithms", "modified aging estimation algorithm", "modified aging optimization algorithmss", "modified aging estimation algorithmss", "modified staffing optimization algorithms", "modified caging optimisation algorithms"
"modified objective 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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