Perhaps you should try some spelling variations:
optimisation algorithmss » optimization algorithms, estimation algorithm
optimisation algorithm » optimization algorithms, estimation algorithm
estimation algorithms » estimation algorithm, optimization algorithms, approximation algorithms
pose » poses, post, jose

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( pose estimation algorithms ) or ( _ ((optimisation algorithmss) or (optimisation algorithm)) ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( pose estimation algorithms ) OR ( _ ((optimisation algorithmss) OR (optimisation algorithm)) )).
• Adding a wildcard symbol may retrieve word variants: (( pose estimation algorithms ) or ( _ ((optimisation algorithmss) or (optimisation algorithm)) ))*.