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