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