Perhaps you should try some spelling variations:
optimization algorithm » optimization algorithms, optimisation algorithm, estimation algorithm
estimation algorithms » estimation algorithm, optimization algorithms, optimisation algorithm
policy estimation » policy optimization, pose estimation, motion estimation
qoe optimization » game optimization, _ optimization, stage optimization
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 policy estimation algorithms ) OR ( modified qoe optimization algorithm ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( modified policy estimation algorithms ) OR ( modified qoe optimization algorithm ))".
• Adding a wildcard symbol may retrieve word variants: (( modified policy estimation algorithms ) OR ( modified qoe optimization algorithm ))*.