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"
"core using method algorithm" » "core using mom algorithm", "core nursing methods algorithm", "core focusing method algorithm", "core using metal algorithm", "code using method algorithm", "care nursing method algorithm"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("core using method algorithm") or ("modified one approximation algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("core using method algorithm") OR ("modified one approximation algorithm"))*.
• Removing quotes may allow a broader search: (( core using method algorithm ) or ( modified one approximation algorithm ))*.