Perhaps you should try some spelling variations:
"modified multiobjective estimation algorithm" » "modified multiobjective optimization algorithm"
"designed network estimation algorithmss" » "designed network estimation algorithms", "designed network optimization algorithms", "designed network optimization algorithmss", "defined network estimation algorithmss"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("designed network estimation algorithmss") or ("modified multiobjective estimation algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("designed network estimation algorithmss") OR ("modified multiobjective estimation algorithm")).
• Removing quotes may allow a broader search: (( designed network estimation algorithmss ) or ( modified multiobjective estimation algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("designed network estimation algorithmss") or ("modified multiobjective estimation algorithm"))*.