Perhaps you should try some spelling variations:
optimization algorithms » optimisation algorithm, estimation algorithms, estimation algorithm
policy optimization » topology optimization
pose approximation » one approximation, time approximation, _ approximation
modified pose » modified male, modified passive

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: (( modified policy optimization algorithms ) OR ( modified pose approximation algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (( modified policy optimization algorithms ) or ( modified pose approximation algorithms ))*.