Perhaps you should try some spelling variations:
optimisation algorithms » optimization algorithms, estimation algorithms, estimation algorithm
parameter optimisation » parameter optimization, parameter estimation
optimisation algorithm » optimization algorithms, estimation algorithm, estimation algorithms
qoe optimisation » qoe optimization, _ optimisation, game optimization

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( parameter optimisation algorithms ) OR ( qoe optimisation algorithm ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( parameter optimisation algorithms ) OR ( qoe optimisation algorithm ))*".