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

Try widening your search to All Fields.

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

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