Perhaps you should try some spelling variations:
"modified bayesian optimisation algorithms" » "modified bayesian optimization algorithms", "modified bayesian estimation algorithms", "modified bayesian estimation algorithm", "modified bayesian optimization algorithmss", "modified bayesian estimation algorithmss"
"modified parameter optimisation algorithm" » "modified parameter optimization algorithm", "modified parameter estimation algorithm", "modified parameter optimization algorithms", "modified parameter estimation 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 bayesian optimisation algorithms") OR ("modified parameter optimisation algorithm"))~.
• Removing quotes may allow a broader search: (( modified bayesian optimisation algorithms ) or ( modified parameter optimisation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified bayesian optimisation algorithms") or ("modified parameter optimisation algorithm"))*.