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

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