Perhaps you should try some spelling variations:
"modified df protection algorithm" » "modified df predation algorithm", "modified df evolution algorithm", "modified df solution algorithm", "modified _ protection algorithm", "modified adam protection algorithm", "modified bi1 protection algorithm"
"modified notion approximation algorithms" » "modified network approximation algorithms", "modified time approximation algorithms", "modified one approximation algorithms"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified df protection algorithm") OR ("modified notion approximation algorithms"))~.
• Removing quotes may allow a broader search: (( modified df protection algorithm ) or ( modified notion approximation algorithms ))~.
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