Perhaps you should try some spelling variations:
"modified allocation optimization algorithms" » "modified allocation optimisation algorithm", "modified allocation estimation algorithms", "modified allocation estimation algorithm", "modified location optimization algorithms"
"modified pose estimation algorithmss" » "modified pose estimation algorithms", "modified pose estimation algorithm", "modified male estimation algorithmss", "modified passive estimation algorithmss"

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