Perhaps you should try some spelling variations:
"modified caging optimized algorithms" » "modified caging optimized algorithm", "modified caging optimizer algorithms", "modified caging optimization algorithms", "modified aging optimized algorithms", "modified changing optimized algorithms", "modified charging optimized algorithms"
"modified bi1 approximation algorithms" » "modified time approximation algorithms", "modified _ approximation algorithms", "modified one approximation algorithms"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified caging optimized algorithms") OR ("modified bi1 approximation algorithms"))~.
• Removing quotes may allow a broader search: (( modified caging optimized algorithms ) or ( modified bi1 approximation algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified caging optimized algorithms") or ("modified bi1 approximation algorithms"))*.