Perhaps you should try some spelling variations:
optimisation algorithm » optimization algorithms, estimation algorithm, estimation algorithms
market optimization » game optimization, parameter optimization, market capitalization
pose optimisation » qoe optimization, _ optimisation, pose estimation
risk optimisation » _ optimisation, risk estimation

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

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