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

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

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