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"
"_ optimized algorithms" » "_ optimized algorithm", "_ optimization algorithms"
"qoe optimizer algorithms" » "qoe optimized algorithm", "qoe optimization algorithms"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"qoe estimation algorithms\") OR (((\"_ optimized algorithms\") OR (\"qoe optimizer algorithms\"))))~".
• Removing quotes may allow a broader search: (( qoe estimation algorithms ) OR ((( _ optimized algorithms ) OR ( qoe optimizer algorithms ))))~.
• Adding a wildcard symbol may retrieve word variants: (("qoe estimation algorithms") OR ((("_ optimized algorithms") OR ("qoe optimizer algorithms"))))*.