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

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("defined network optimized algorithms") or ("modified multiobjective optimization algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("defined network optimized algorithms") OR ("modified multiobjective optimization algorithms"))*.
• Removing quotes may allow a broader search: (( defined network optimized algorithms ) or ( modified multiobjective optimization algorithms ))*.