Perhaps you should try some spelling variations:
"modified location optimisation algorithms" » "modified location optimisation algorithm", "modified location optimization algorithms", "modified location estimation algorithm", "modified allocation optimization algorithms", "modified carbon optimisation algorithms"
"modified parameter estimation algorithms" » "modified parameter estimation algorithm", "modified parameter optimization algorithms", "modified parameter optimisation algorithm", "modified parameter estimates algorithms"

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