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