Perhaps you should try some spelling variations:
"parameters optimisation algorithmssssssssssssssss" » "parameter optimization algorithmssssssssssssssss", "parameter estimation algorithmssssssssssssssss", "parameters optimization algorithmsssssssssssssssss", "parameters estimation algorithmssssssssssssssss", "parameters estimation algorithmsssssssssssssssss"
"parameter optimisation algorithm" » "parameter optimization algorithm", "parameter estimation algorithm", "parameter optimization algorithms", "parameter 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 algorithm") or ("parameters optimisation algorithmssssssssssssssss"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("parameter optimisation algorithm") OR ("parameters optimisation algorithmssssssssssssssss")).
• Removing quotes may allow a broader search: (( parameter optimisation algorithm ) or ( parameters optimisation algorithmssssssssssssssss )).
• Adding a wildcard symbol may retrieve word variants: (("parameter optimisation algorithm") or ("parameters optimisation algorithmssssssssssssssss"))*.