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

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

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