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 element solution algorithm" » "modified element evolution algorithm", "modified element convolution algorithms", "modified element evolutionary algorithm", "modified element production algorithm"

Try widening your search to All Fields.

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

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