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

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("qoe estimation algorithms") or ((("_ optimized algorithms") OR ("_ optimized algorithm"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("qoe estimation algorithms") OR ((("_ optimized algorithms") OR ("_ optimized algorithm"))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"qoe estimation algorithms\") or (((\"_ optimized algorithms\") OR (\"_ optimized algorithm\"))))*".
• Removing quotes may allow a broader search: (( qoe estimation algorithms ) or ((( _ optimized algorithms ) OR ( _ optimized algorithm ))))*.