Perhaps you should try some spelling variations:
"defined network estimation algorithmss" » "defined network estimation algorithms", "defined network optimization algorithms", "defined network optimization algorithmss", "designed network estimation algorithmss"
"modified objective estimation algorithm" » "modified objective optimization algorithm", "modified objective allocation algorithm"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"defined network estimation algorithmss\") OR (\"modified objective estimation algorithm\"))~".
• Removing quotes may allow a broader search: (( defined network estimation algorithmss ) OR ( modified objective estimation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("defined network estimation algorithmss") OR ("modified objective estimation algorithm"))*.