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

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

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