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