Perhaps you should try some spelling variations:
"modified parameter optimisation algorithmssssss" » "modified parameter optimization algorithms", "modified parameter optimization algorithmsssssss", "modified parameter estimation algorithmssssss", "modified parameter estimation algorithmsssssss", "modified parameter optimization algorithmssssss"
"defined network optimisation algorithm" » "defined network optimization algorithms", "defined network estimation algorithm", "defined network estimation algorithms", "defined network optimization algorithm", "designed network optimisation algorithm"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("defined network optimisation algorithm") or ("modified parameter optimisation algorithmssssss"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("defined network optimisation algorithm") OR ("modified parameter optimisation algorithmssssss")).
• Removing quotes may allow a broader search: (( defined network optimisation algorithm ) or ( modified parameter optimisation algorithmssssss )).
• Adding a wildcard symbol may retrieve word variants: (("defined network optimisation algorithm") or ("modified parameter optimisation algorithmssssss"))*.