Perhaps you should try some spelling variations:
"modified df optimisation algorithmsss" » "modified df optimisation algorithm", "modified df optimization algorithms", "modified df estimation algorithms", "modified _ optimisation algorithmsss", "modified _ optimization algorithmsss", "modified qoe optimization algorithmsss", "modified adam optimisation algorithmsss", "modified bi1 optimisation algorithmsss"
"modified parameter optimization algorithm" » "modified parameter optimization algorithms", "modified parameter optimisation algorithm", "modified parameter estimation algorithm", "modified parameters optimization algorithm"

Try widening your search to All Fields.

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 optimisation algorithmsss") or ("modified parameter optimization algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified df optimisation algorithmsss") OR ("modified parameter optimization algorithm")).
• Removing quotes may allow a broader search: (( modified df optimisation algorithmsss ) or ( modified parameter optimization algorithm )).
• Adding a wildcard symbol may retrieve word variants: (("modified df optimisation algorithmsss") or ("modified parameter optimization algorithm"))*.