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