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

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• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified made optimization algorithmss\") OR (\"modified multiobjective estimation algorithms\"))~".
• Removing quotes may allow a broader search: (( modified made optimization algorithmss ) OR ( modified multiobjective estimation algorithms ))~.
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