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"
"modified game optimization algorithm" » "modified game optimization algorithms", "modified game optimisation algorithm", "modified game estimation algorithm", "modified stage optimization algorithm", "modified qoe optimization algorithm", "modified market optimization algorithm", "modified male optimization algorithm", "modified adam optimization algorithm"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified one approximation algorithm") OR ("modified game optimization algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified one approximation algorithm\") OR (\"modified game optimization algorithm\"))".
• Removing quotes may allow a broader search: (( modified one approximation algorithm ) OR ( modified game optimization algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified one approximation algorithm") OR ("modified game optimization algorithm"))*.