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

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: "(( qoe ((optimization algorithms) OR (estimation algorithms)) ) OR ( _ optimisation algorithmss ))~".
• Adding a wildcard symbol may retrieve word variants: (( qoe ((optimization algorithms) OR (estimation algorithms)) ) OR ( _ optimisation algorithmss ))*.