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