Perhaps you should try some spelling variations:
optimization algorithms » optimisation algorithm, estimation algorithms, estimation algorithm
cover optimization » game optimization
pose optimisation » _ optimisation, pose estimation, game optimization
qoe optimization » game optimization, _ optimization, stage optimization

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (( ((pose optimisation) OR (qoe optimization)) algorithm ) OR ( cover optimization algorithms ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((pose optimisation) OR (qoe optimization)) algorithm ) or ( cover optimization algorithms ))~".
• Adding a wildcard symbol may retrieve word variants: (( ((pose optimisation) OR (qoe optimization)) algorithm ) or ( cover optimization algorithms ))*.