Perhaps you should try some spelling variations:
"modified parameter optimization algorithmsss" » "modified parameter optimization algorithms", "modified parameter optimisation algorithm", "modified parameter estimation algorithms", "modified parameters optimization algorithmsss"
"modified objective estimation algorithm" » "modified objective optimization algorithm", "modified objective allocation algorithm"

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

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