Perhaps you should try some spelling variations:
"parameter optimisation algorithmsssssss" » "parameter optimization algorithms", "parameter optimization algorithmsssssss", "parameter estimation algorithmsssssss", "parameter optimization algorithmssssssss", "parameter estimation algorithmssssssss"
"parameters optimisation algorithm" » "parameter optimization algorithm", "parameter estimation algorithm", "parameters optimization algorithms", "parameters estimation algorithm", "parameters estimation algorithms"

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: (("parameter optimisation algorithmsssssss") or ("parameters optimisation algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("parameter optimisation algorithmsssssss") OR ("parameters optimisation algorithm")).
• Removing quotes may allow a broader search: (( parameter optimisation algorithmsssssss ) or ( parameters optimisation algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("parameter optimisation algorithmsssssss") or ("parameters optimisation algorithm"))*.