Perhaps you should try some spelling variations:
"modified parameter optimization algorithms" » "modified parameter optimisation algorithm", "modified parameter estimation algorithms", "modified parameter estimation algorithm", "modified parameters optimization algorithms"
"modified network estimation algorithmss" » "modified network estimation algorithms", "modified network estimation algorithm", "modified network optimization algorithmss", "certified network estimation algorithmss", "defined network estimation algorithmss", "modified near estimation algorithmss"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified network estimation algorithmss") OR ("modified parameter optimization algorithms"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified network estimation algorithmss\") OR (\"modified parameter optimization algorithms\"))".
• Removing quotes may allow a broader search: (( modified network estimation algorithmss ) OR ( modified parameter optimization algorithms )).
• Adding a wildcard symbol may retrieve word variants: (("modified network estimation algorithmss") OR ("modified parameter optimization algorithms"))*.