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