Perhaps you should try some spelling variations:
"_ optimization algorithms" » "_ optimisation algorithm", "_ estimation algorithm", "_ optimized algorithms"
"_ estimation algorithms" » "_ estimation algorithm", "_ optimisation algorithm", "_ approximation algorithms"
"qoe optimizer algorithms" » "qoe optimized algorithms", "qoe 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: (((("_ estimation algorithms") or ("_ optimization algorithms"))) or ("qoe optimizer algorithms"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("_ estimation algorithms") OR ("_ optimization algorithms"))) OR ("qoe optimizer algorithms"))*.
• Removing quotes may allow a broader search: (((( _ estimation algorithms ) or ( _ optimization algorithms ))) or ( qoe optimizer algorithms ))*.