Perhaps you should try some spelling variations:
"modified notion approximation algorithms" » "modified network approximation algorithms", "modified time approximation algorithms", "modified one approximation algorithms"
"enabling learning predation algorithm" » "enabling learning predators algorithm", "enabling learning estimation algorithm", "enabling learning prediction algorithm", "enabling learning emotion algorithm", "mapping learning predation algorithm"

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: (("enabling learning predation algorithm") OR ("modified notion approximation algorithms"))~.
• Removing quotes may allow a broader search: (( enabling learning predation algorithm ) or ( modified notion approximation algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("enabling learning predation algorithm") or ("modified notion approximation algorithms"))*.