Perhaps you should try some spelling variations:
optimization algorithms » estimation algorithms, estimation algorithm, optimized algorithms
optimisation algorithm » estimation algorithm, estimation algorithms
game optimisation » game optimization, stage optimization, _ optimisation
qoe optimization » game optimization, _ optimization, stage optimization
modified game » modified male, modified adam
modified qoe » modified male, modified _, modified bi1

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( modified qoe optimization algorithms ) or ( modified game optimisation algorithm ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( modified qoe optimization algorithms ) OR ( modified game optimisation algorithm ))*.