Perhaps you should try some spelling variations:
optimisation algorithms » optimisation algorithm, optimization algorithms, estimation algorithms
policy optimisation » policy optimization, topology optimization
game optimization » stage optimization, market optimization, _ optimization
qoe optimization » _ optimization, stage optimization, _ optimisation

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( ((qoe optimization) OR (game optimization)) algorithm ) or ( policy optimisation algorithms ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( ((qoe optimization) OR (game optimization)) algorithm ) OR ( policy optimisation algorithms ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((qoe optimization) OR (game optimization)) algorithm ) or ( policy optimisation algorithms ))*".