Perhaps you should try some spelling variations:
"modified multiobjective optimization algorithms" » "modified multiobjective optimisation algorithm", "modified multiobjective estimation algorithm", "modified multiobjective optimized algorithms"
"modified over estimation algorithms" » "modified over estimation algorithm", "modified over optimisation algorithm", "modified over approximation algorithms", "modified cover estimations algorithms", "modified pose estimation algorithms", "modified sphere estimation algorithms", "modified near estimation algorithms", "modified orca estimation 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 over estimation algorithms") OR ("modified multiobjective optimization algorithms"))~.
• Removing quotes may allow a broader search: (( modified over estimation algorithms ) or ( modified multiobjective optimization algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified over estimation algorithms") or ("modified multiobjective optimization algorithms"))*.