Perhaps you should try some spelling variations:
"modified df optimization algorithmsss" » "modified df optimization algorithms", "modified df optimisation algorithm", "modified df estimation algorithms", "modified df optimization algorithmssss", "modified df optimisation algorithmsss", "modified df estimation algorithmsss", "modified _ optimization algorithmsss", "modified qoe optimization algorithmsss", "modified _ optimisation algorithmsss", "modified adam optimization algorithmsss", "modified bi1 optimization algorithmsss"
"modified parameters optimization algorithm" » "modified parameter optimization algorithm", "modified parameter estimation algorithm", "modified parameters optimization algorithms", "modified parameters optimisation algorithm", "modified parameters 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: (("modified df optimization algorithmsss") OR ("modified parameters optimization algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified df optimization algorithmsss\") OR (\"modified parameters optimization algorithm\"))".
• Removing quotes may allow a broader search: (( modified df optimization algorithmsss ) OR ( modified parameters optimization algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified df optimization algorithmsss") OR ("modified parameters optimization algorithm"))*.