Perhaps you should try some spelling variations:
"modified multiobjective estimation algorithm" » "modified multiobjective optimization algorithm"
"modified aging optimized algorithms" » "modified aging optimized algorithm", "modified aging optimizer algorithms", "modified aging optimization algorithms", "modified caging optimized algorithms"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified aging optimized algorithms\") OR (\"modified multiobjective estimation algorithm\"))~".
• Removing quotes may allow a broader search: (( modified aging optimized algorithms ) OR ( modified multiobjective estimation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified aging optimized algorithms") OR ("modified multiobjective estimation algorithm"))*.