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

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 parameters optimisation algorithm\") OR (\"modified parameter estimation algorithmss\"))~".
• Removing quotes may allow a broader search: (( modified parameters optimisation algorithm ) OR ( modified parameter estimation algorithmss ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified parameters optimisation algorithm") OR ("modified parameter estimation algorithmss"))*.