Perhaps you should try some spelling variations:
"modified adaptive convolution algorithms" » "modified adaptive evolution algorithm", "modified adaptive solution algorithm", "modified adaptive construction algorithms", "modified adaptive ventilation algorithms", "modified passive convolution algorithms"
"modified network approximation algorithms" » "certified network approximation algorithms", "defined network approximation algorithms", "modified near approximation algorithms"

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