Perhaps you should try some spelling variations:
optimisation algorithm » optimization algorithms, estimation algorithm
estimation algorithms » estimation algorithm, optimization algorithms, approximation algorithms
policy optimisation » policy optimization, topology optimization
plant estimation » pulses estimation, pose estimation, plant simulation

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

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