Perhaps you should try some spelling variations:
"cover estimations algorithm" » "cover estimation algorithms", "cover optimisation algorithm", "pose estimation algorithm"
"_ optimizer algorithms" » "_ optimized algorithms", "_ optimized algorithm", "_ optimization algorithms"
"qoe estimation algorithm" » "pose estimation algorithm", "_ estimation algorithm", "qoe optimization algorithm"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("_ optimizer algorithms") or ((("qoe estimation algorithm") or ("cover estimations algorithm"))))~.
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