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

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("modified parameter estimation algorithms") or ("modified response optimization algorithmss"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified parameter estimation algorithms") OR ("modified response optimization algorithmss")).
• Removing quotes may allow a broader search: (( modified parameter estimation algorithms ) or ( modified response optimization algorithmss )).
• Adding a wildcard symbol may retrieve word variants: (("modified parameter estimation algorithms") or ("modified response optimization algorithmss"))*.