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

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 optimisation algorithm") OR ("modified parameters optimisation algorithms"))~.
• Removing quotes may allow a broader search: (( modified response optimisation algorithm ) or ( modified parameters optimisation algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified response optimisation algorithm") or ("modified parameters optimisation algorithms"))*.