Perhaps you should try some spelling variations:
"modified objective optimization algorithms" » "modified objective optimisation algorithm", "modified objective estimation algorithms", "modified objective estimation algorithm", "modified multiobjective optimization algorithms"
"verified network optimized algorithms" » "verified network optimized algorithm", "verified network optimizer algorithms", "verified network optimization algorithms", "certified network optimized algorithms", "defined network optimized 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 objective optimization algorithms") OR ("verified network optimized algorithms"))~.
• Removing quotes may allow a broader search: (( modified objective optimization algorithms ) or ( verified network optimized algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified objective optimization algorithms") or ("verified network optimized algorithms"))*.