Perhaps you should try some spelling variations:
"modified objective optimization algorithms" » "modified objective optimisation algorithm", "modified objective estimation algorithms", "modified objective estimation algorithm", "modified multiobjective optimization algorithms"
"modified global convolution algorithms" » "modified global evolution algorithm", "modified global solution algorithm", "modified global evolution algorithms"

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