Perhaps you should try some spelling variations:
"allocation optimisation algorithmssssssss" » "allocation optimization algorithmssssssss", "allocation optimization algorithmsssssssss", "allocation estimation algorithmssssssss", "allocation estimation algorithmsssssssss"
"parameter optimisation algorithm" » "parameter optimization algorithm", "parameter estimation algorithm", "parameter optimization algorithms", "parameter estimation algorithms"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("parameter optimisation algorithm") or ("allocation optimisation algorithmssssssss"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("parameter optimisation algorithm") OR ("allocation optimisation algorithmssssssss")).
• Removing quotes may allow a broader search: (( parameter optimisation algorithm ) or ( allocation optimisation algorithmssssssss )).
• Adding a wildcard symbol may retrieve word variants: (("parameter optimisation algorithm") or ("allocation optimisation algorithmssssssss"))*.