Perhaps you should try some spelling variations:
"modified market optimization algorithms" » "modified market optimisation algorithm", "modified market estimation algorithms", "modified market estimation algorithm", "modified game optimization algorithms", "modified parameter optimization algorithms", "modified market capitalization algorithms", "modified male optimization algorithms"
"modified coverage approximation algorithms" » "modified average approximation algorithms"

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