Perhaps you should try some spelling variations:
optimisation algorithm » optimization algorithms, estimation algorithm, estimation algorithms
rough approximation » rough approximations
pose optimisation » qoe optimization, _ optimisation, pose estimation
one approximation » time approximation, _ approximation, rough approximations

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 algorithm ) OR ( ((rough approximation) OR (one approximation)) algorithm ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( pose optimisation algorithm ) or ( ((rough approximation) OR (one approximation)) algorithm ))~".
• Adding a wildcard symbol may retrieve word variants: (( pose optimisation algorithm ) or ( ((rough approximation) OR (one approximation)) algorithm ))*.