Perhaps you should try some spelling variations:
"parameter optimisation algorithm" » "parameter optimization algorithms", "parameter estimation algorithm", "parameter estimation algorithms", "parameter optimization algorithm"
"notion optimization algorithmsssssssssssssss" » "network optimization algorithmsssssssssssssss", "policy optimization algorithmsssssssssssssss", "allocation optimization algorithmsssssssssssssss"

You may be able to get more results by adjusting your search query.

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