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