Perhaps you should try some spelling variations:
"modified caging optimizer algorithms" » "modified caging optimized algorithms", "modified caging optimized algorithm", "modified caging optimization algorithms", "modified choosing optimizer algorithms"
"modified one approximation algorithms" » "modified time approximation algorithms", "modified _ approximation algorithms", "modified rough approximations algorithms", "modified male approximation algorithms", "modified near approximation algorithms", "modified orca approximation algorithms"

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

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