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

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