Perhaps you should try some spelling variations:
"modified over optimization algorithms" » "modified over optimisation algorithm", "modified over estimation algorithms", "modified over optimized algorithms", "modified qoe optimization algorithms", "modified _ optimization algorithms", "modified game optimization algorithms", "modified near optimization algorithms", "modified orca optimization algorithms"
"modified notion estimation algorithm" » "modified motion 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 over optimization algorithms") OR ("modified notion estimation algorithm"))~.
• Removing quotes may allow a broader search: (( modified over optimization algorithms ) or ( modified notion estimation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (("modified over optimization algorithms") or ("modified notion estimation algorithm"))*.