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