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

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 male optimisation algorithm ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( modified qoe optimization algorithms ) OR ( modified male optimisation algorithm )).
• Adding a wildcard symbol may retrieve word variants: (( modified qoe optimization algorithms ) or ( modified male optimisation algorithm ))*.