Perhaps you should try some spelling variations:
"modified one approximation algorithm" » "modified one approximation algorithms", "modified time approximation algorithm", "modified _ approximation algorithm", "modified rough approximations algorithm", "modified male approximation algorithm", "modified near approximation algorithm", "modified orca approximation algorithm"
"designed network optimisation algorithm" » "designed network optimization algorithms", "designed network estimation algorithm", "designed network estimation algorithms", "designed network optimization algorithm", "defined network optimisation algorithm"

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: "((\"designed network optimisation algorithm\") OR (\"modified one approximation algorithm\"))~".
• Removing quotes may allow a broader search: (( designed network optimisation algorithm ) OR ( modified one approximation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("designed network optimisation algorithm") OR ("modified one approximation algorithm"))*.