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

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 optimisation algorithmssssssssss") OR ("parameters optimisation algorithm"))~.
• Removing quotes may allow a broader search: (( notion optimisation algorithmssssssssss ) or ( parameters optimisation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("notion optimisation algorithmssssssssss") or ("parameters optimisation algorithm"))*.