Perhaps you should try some spelling variations:
"modified objective optimization algorithms" » "modified objective optimisation algorithm", "modified objective estimation algorithms", "modified objective estimation algorithm", "modified objective optimisation algorithms", "modified objective estimation algorithmss", "modified multiobjective optimization algorithms"
"modified location optimization algorithm" » "modified location optimisation algorithm", "modified location estimation algorithm", "modified location estimation algorithms", "modified allocation optimization algorithm", "modified static optimization algorithm", "modified carbon optimization algorithm"

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