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

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 ("parameter optimization algorithmssssss"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"allocation optimization algorithms\") OR (\"parameter optimization algorithmssssss\"))".
• Removing quotes may allow a broader search: (( allocation optimization algorithms ) OR ( parameter optimization algorithmssssss )).
• Adding a wildcard symbol may retrieve word variants: (("allocation optimization algorithms") OR ("parameter optimization algorithmssssss"))*.