Perhaps you should try some spelling variations:
"modified game optimization algorithms" » "modified game estimation algorithms", "modified game estimation algorithm", "modified game optimized algorithms", "modified stage optimization algorithms", "modified qoe optimization algorithms", "modified market optimization algorithms", "modified male optimization algorithms", "modified adam optimization algorithms"
"modified df optimisation algorithm" » "modified df estimation algorithm", "modified df estimation algorithms", "modified _ optimisation algorithm", "modified _ optimization algorithm", "modified qoe optimization algorithm", "modified adam optimisation algorithm", "modified bi1 optimisation 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 game optimization algorithms") OR ("modified df optimisation algorithm"))~.
• Removing quotes may allow a broader search: (( modified game optimization algorithms ) or ( modified df optimisation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified game optimization algorithms") or ("modified df optimisation algorithm"))*.