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