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

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

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