Perhaps you should try some spelling variations:
"modified objective estimation algorithms" » "modified objective estimation algorithm", "modified objective optimization algorithms", "modified objective optimisation algorithm", "modified objective allocation algorithms"
"modified location optimized algorithms" » "modified location optimized algorithm", "modified location optimizer algorithms", "modified location optimization algorithms", "modified carbon optimized algorithms"

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