Perhaps you should try some spelling variations:
"_ estimation algorithmss" » "_ estimation algorithm", "_ optimization algorithms", "_ estimation algorithms", "_ optimization algorithmss", "_ optimisation algorithms"
"qoe optimization algorithm" » "qoe optimization algorithms", "qoe optimisation algorithm", "qoe estimation algorithm", "game optimization algorithm", "_ optimization algorithm", "stage optimization algorithm"
"_ estimation algorithms" » "_ estimation algorithm", "_ optimization algorithms", "_ optimisation algorithm"

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

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