Perhaps you should try some spelling variations:
"modified game estimation algorithms" » "modified game optimization algorithms", "modified game optimisation algorithm", "modified game approximation algorithms", "modified pose estimation algorithms", "modified male estimation algorithms", "modified adam estimation algorithms"
"modified objective estimation algorithm" » "modified objective optimization algorithm", "modified objective allocation algorithm"

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