Perhaps you should try some spelling variations:
"modified multiobjective estimation algorithm" » "modified multiobjective optimization algorithm"
"modified seird optimization algorithms" » "modified seird optimisation algorithm", "modified seird estimation algorithms", "modified seird optimized algorithms", "modified stage optimization algorithms", "modified network optimization algorithms", "modified near optimization 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 seird optimization algorithms") or ("modified multiobjective estimation algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified seird optimization algorithms") OR ("modified multiobjective estimation algorithm")).
• Removing quotes may allow a broader search: (( modified seird optimization algorithms ) or ( modified multiobjective estimation algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified seird optimization algorithms") or ("modified multiobjective estimation algorithm"))*.