Perhaps you should try some spelling variations:
"modified df optimization algorithmsss" » "modified df optimization algorithms", "modified df optimisation algorithm", "modified df estimation algorithms", "modified _ optimization algorithmsss", "modified qoe optimization algorithmsss", "modified _ optimisation algorithmsss", "modified adam optimization algorithmsss", "modified bi1 optimization algorithmsss"
"modified objective allocation algorithm" » "modified objective estimation algorithm", "modified objective evolution algorithm", "modified objective predation algorithm"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modified df optimization algorithmsss\") OR (\"modified objective allocation algorithm\"))~".
• Removing quotes may allow a broader search: (( modified df optimization algorithmsss ) OR ( modified objective allocation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified df optimization algorithmsss") OR ("modified objective allocation algorithm"))*.