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.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"_ 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 ))~.
• Adding a wildcard symbol may retrieve word variants: (((("_ estimation algorithms") OR ("_ optimization algorithms"))) OR ("qoe optimizer algorithms"))*.