Perhaps you should try some spelling variations:
"_ optimization algorithms" » "_ optimisation algorithm", "_ estimation algorithms", "_ estimation algorithm", "_ optimisation algorithms", "_ estimation algorithmss"
"qoe optimization algorithm" » "qoe optimisation algorithm", "qoe estimation algorithm", "qoe estimation algorithms", "game optimization algorithm", "stage optimization algorithm", "_ optimisation algorithm"
"_ optimized algorithms" » "_ 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 optimization algorithm") or ((("_ optimized algorithms") OR ("_ optimization algorithms"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("qoe optimization algorithm") OR ((("_ optimized algorithms") OR ("_ optimization algorithms")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"qoe optimization algorithm\") or (((\"_ optimized algorithms\") OR (\"_ optimization algorithms\"))))".
• Removing quotes may allow a broader search: (( qoe optimization algorithm ) or ((( _ optimized algorithms ) OR ( _ optimization algorithms )))).
• Adding a wildcard symbol may retrieve word variants: (("qoe optimization algorithm") or ((("_ optimized algorithms") OR ("_ optimization algorithms"))))*.