Perhaps you should try some spelling variations:
"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"
"pose optimized algorithm" » "pose optimized algorithms", "pose optimizer algorithms", "poses optimized algorithm", "post optimized algorithm", "jose optimized algorithm"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("pose optimized algorithm") or ((("qoe optimization algorithm") or ("_ estimation algorithms"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("pose optimized algorithm") OR ((("qoe optimization algorithm") OR ("_ estimation algorithms")))).
• Removing quotes may allow a broader search: (( pose optimized algorithm ) or ((( qoe optimization algorithm ) or ( _ estimation algorithms )))).
• Adding a wildcard symbol may retrieve word variants: (("pose optimized algorithm") or ((("qoe optimization algorithm") or ("_ estimation algorithms"))))*.