Perhaps you should try some spelling variations:
"attribute optimization algorithm" » "attribute optimization algorithms", "attribute optimisation algorithm", "attribute estimation algorithm", "attributed optimization algorithm", "attributes optimization algorithm"
"parameter optimization algorithmssssssssss" » "parameter optimization algorithmsssssssssss", "parameter optimisation algorithmssssssssss", "parameter estimation algorithmssssssssss", "parameters optimization algorithmssssssssss"

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