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

You may be able to get more results by adjusting your search query.

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