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 response estimation algorithmss" » "modified response estimation algorithms", "modified response estimation algorithm", "modified response optimization algorithmss", "modified pose estimation algorithmss", "modified response association algorithmss"

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

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