Perhaps you should try some spelling variations:
"qoe optimizer algorithms" » "qoe optimized algorithms", "qoe optimized algorithm", "qoe optimization algorithms"
"_ optimize algorithmss" » "_ optimized algorithms", "_ optimized algorithm", "_ optimized algorithmss", "_ optimise algorithmss"
"risk estimation algorithm" » "pose estimation 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 optimizer algorithms") OR ("_ optimize algorithmss"))) OR ("risk estimation algorithm"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"qoe optimizer algorithms\") OR (\"_ optimize algorithmss\"))) OR (\"risk estimation algorithm\"))".
• Removing quotes may allow a broader search: (((( qoe optimizer algorithms ) OR ( _ optimize algorithmss ))) OR ( risk estimation algorithm )).
• Adding a wildcard symbol may retrieve word variants: (((("qoe optimizer algorithms") OR ("_ optimize algorithmss"))) OR ("risk estimation algorithm"))*.