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