Perhaps you should try some spelling variations:
"_ estimation algorithmss" » "_ optimization algorithms", "_ optimization algorithmss", "_ optimisation algorithms", "_ approximation algorithmss"
"_ estimation algorithms" » "_ optimization algorithms", "_ optimisation algorithm", "_ approximation algorithms"
"qoe estimation algorithm" » "pose estimation algorithm", "cover estimations algorithm", "qoe 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: (("qoe estimation algorithm") OR ((("_ estimation algorithmss") OR ("_ estimation algorithms"))))~.
• Removing quotes may allow a broader search: (( qoe estimation algorithm ) or ((( _ estimation algorithmss ) or ( _ estimation algorithms ))))~.
• Adding a wildcard symbol may retrieve word variants: (("qoe estimation algorithm") or ((("_ estimation algorithmss") or ("_ estimation algorithms"))))*.