Perhaps you should try some spelling variations:
"qoe optimized algorithms" » "qoe optimizer algorithms", "qoe optimization algorithms", "qoe optimizer algorithmss"
"_ optimized algorithm" » "_ optimizer algorithms"
"robust estimation algorithm" » "robust optimization algorithm", "pose estimation algorithm", "risk estimation algorithm"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("robust estimation algorithm") or ((("qoe optimized algorithms") or ("_ optimized algorithm"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("robust estimation algorithm") OR ((("qoe optimized algorithms") OR ("_ optimized algorithm")))).
• Removing quotes may allow a broader search: (( robust estimation algorithm ) or ((( qoe optimized algorithms ) or ( _ optimized algorithm )))).
• Adding a wildcard symbol may retrieve word variants: (("robust estimation algorithm") or ((("qoe optimized algorithms") or ("_ optimized algorithm"))))*.