Perhaps you should try some spelling variations:
"modified multiobjective optimisation algorithm" » "modified multiobjective optimization algorithm", "modified objective optimization algorithm", "modified multiobjective optimization algorithms", "modified multiobjective estimation algorithm", "modified multiobjective estimation algorithms"
"modified make optimisation algorithms" » "modified make optimization algorithms", "modified make estimation algorithms", "modified make estimation algorithm", "modified make optimization algorithmss", "modified make estimation algorithmss", "modified market optimization algorithms", "modified game optimization algorithms", "modified stage optimization algorithms", "modified male optimisation algorithms"

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