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

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("allocation optimization algorithms") OR ("parameters optimization algorithmssssssssssss"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"allocation optimization algorithms\") OR (\"parameters optimization algorithmssssssssssss\"))".
• Removing quotes may allow a broader search: (( allocation optimization algorithms ) OR ( parameters optimization algorithmssssssssssss )).
• Adding a wildcard symbol may retrieve word variants: (("allocation optimization algorithms") OR ("parameters optimization algorithmssssssssssss"))*.