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