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

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("most optimizer algorithmss") or ("mot optimized algorithm"))) or ("qoe estimation algorithm"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("most optimizer algorithmss") OR ("mot optimized algorithm"))) OR ("qoe estimation algorithm")).
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• Adding a wildcard symbol may retrieve word variants: (((("most optimizer algorithmss") or ("mot optimized algorithm"))) or ("qoe estimation algorithm"))*.