Perhaps you should try some spelling variations:
"modified model predicting algorithm" » "modified model predation algorithm", "modified model predators algorithm", "modified model splitting algorithm", "modified model predictive algorithm", "modified model reduction algorithm", "modified male predicting algorithm"
"modified average approximation algorithms" » "modified coverage approximation algorithms"

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