Perhaps you should try some spelling variations:
"modified orca approximation algorithm" » "modified _ approximation algorithm", "modified time approximation algorithm", "modified rough approximations algorithm"
"modified one approximation algorithms" » "modified time approximation algorithms", "modified _ approximation algorithms", "modified rough approximations algorithms", "modified male approximation algorithms", "modified near approximation algorithms"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified orca approximation algorithm\") OR (\"modified one approximation algorithms\"))~".
• Removing quotes may allow a broader search: (( modified orca approximation algorithm ) OR ( modified one approximation algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified orca approximation algorithm") OR ("modified one approximation algorithms"))*.