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"
"allocation optimisation algorithmssssssssss" » "allocation optimization algorithmssssssssss", "allocation optimization algorithmsssssssssss", "allocation estimation algorithmssssssssss", "allocation estimation algorithmsssssssssss"

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