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

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