Perhaps you should try some spelling variations:
"modified optimal optimization algorithmss" » "modified optimal optimization algorithms", "modified optimal estimation algorithms", "modified optimal estimation algorithm", "modified geometrical optimization algorithmss", "modified global optimization algorithmss", "modified thermal optimization algorithmss"
"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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