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

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