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

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 optimization algorithm") OR ("modified df optimization algorithmsssss"))~.
• Removing quotes may allow a broader search: (( modified objective optimization algorithm ) or ( modified df optimization algorithmsssss ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified objective optimization algorithm") or ("modified df optimization algorithmsssss"))*.