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