Perhaps you should try some spelling variations:
"modified df optimisation algorithmss" » "modified df optimization algorithms", "modified df estimation algorithms", "modified df estimation algorithm", "modified df optimization algorithmsss", "modified df estimation algorithmss", "modified df estimation algorithmsss", "modified _ optimisation algorithmss", "modified _ optimization algorithmss", "modified qoe optimization algorithmss", "modified adam optimisation algorithmss", "modified bi1 optimisation algorithmss"
"modified bayesian optimisation algorithm" » "modified bayesian optimization algorithms", "modified bayesian estimation algorithm", "modified bayesian estimation algorithms", "modified bayesian 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 bayesian optimisation algorithm") or ("modified df optimisation algorithmss"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("modified bayesian optimisation algorithm") OR ("modified df optimisation algorithmss")).
• Removing quotes may allow a broader search: (( modified bayesian optimisation algorithm ) or ( modified df optimisation algorithmss )).
• Adding a wildcard symbol may retrieve word variants: (("modified bayesian optimisation algorithm") or ("modified df optimisation algorithmss"))*.