Perhaps you should try some spelling variations:
optimisation algorithm » optimization algorithms, estimation algorithm
estimation algorithms » estimation algorithm, optimization algorithms, approximation algorithms
optimized algorithm » optimized algorithms, optimizer algorithms
qoe optimized » _ optimized

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

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