Perhaps you should try some spelling variations:
"allocation optimization algorithmssssss" » "allocation optimisation algorithm", "allocation optimisation algorithmsssss", "allocation estimation algorithmssssss", "allocation estimation algorithmsssss", "location optimization algorithmssssss"
"parameters optimization algorithms" » "parameter optimization algorithms", "parameter estimation algorithms", "parameters optimisation algorithm", "parameters estimation algorithms", "parameters estimation algorithm"

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