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"
"_ optimizer algorithms" » "_ optimized algorithms", "_ optimized algorithm", "_ optimization algorithms", "_ optimize algorithms"
"_ optimise algorithms" » "_ optimized algorithms", "_ optimized algorithm", "_ optimize algorithms"

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: (("qoe estimation algorithms") or ((("_ optimizer algorithms") OR ("_ optimise algorithms"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("qoe estimation algorithms") OR ((("_ optimizer algorithms") OR ("_ optimise algorithms")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"qoe estimation algorithms\") or (((\"_ optimizer algorithms\") OR (\"_ optimise algorithms\"))))".
• Removing quotes may allow a broader search: (( qoe estimation algorithms ) or ((( _ optimizer algorithms ) OR ( _ optimise algorithms )))).
• Adding a wildcard symbol may retrieve word variants: (("qoe estimation algorithms") or ((("_ optimizer algorithms") OR ("_ optimise algorithms"))))*.