Perhaps you should try some spelling variations:
"modified changing optimized algorithms" » "modified changing optimized algorithm", "modified changing optimizer algorithms", "modified changing optimization algorithms", "modified choosing optimizer algorithms", "modified caging optimized algorithms"
"modified rough approximation algorithms" » "modified rough approximations algorithms", "modified one 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 changing optimized algorithms") OR ("modified rough approximation algorithms"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified changing optimized algorithms\") OR (\"modified rough approximation algorithms\"))".
• Removing quotes may allow a broader search: (( modified changing optimized algorithms ) OR ( modified rough approximation algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("modified changing optimized algorithms") OR ("modified rough approximation algorithms"))*.