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