Perhaps you should try some spelling variations:
"qoe estimation algorithms" » "qoe estimation algorithm", "qoe optimization algorithms", "qoe optimisation algorithm", "pose estimation algorithms", "_ estimation algorithms", "cover estimations algorithms"
"qoe optimized algorithms" » "qoe optimizer algorithms", "qoe optimization algorithms", "qoe optimizer algorithmss", "_ optimized algorithms"
"qoe optimized algorithm" » "qoe optimizer algorithms", "_ optimized 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: (("qoe estimation algorithms") OR ((("qoe optimized algorithms") OR ("qoe optimized algorithm"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"qoe estimation algorithms\") or (((\"qoe optimized algorithms\") OR (\"qoe optimized algorithm\"))))~".
• Removing quotes may allow a broader search: (( qoe estimation algorithms ) or ((( qoe optimized algorithms ) OR ( qoe optimized algorithm ))))~.
• Adding a wildcard symbol may retrieve word variants: (("qoe estimation algorithms") or ((("qoe optimized algorithms") OR ("qoe optimized algorithm"))))*.