Perhaps you should try some spelling variations:
attributes optimization » attribute optimization
optimization algorithms » optimisation algorithm, estimation algorithm, optimized algorithms
estimation algorithms » estimation algorithm, optimisation algorithm, approximation algorithms
pulse estimation » pulses estimation, pose estimation, sphere estimation

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: (( pulse estimation algorithms ) OR ( attributes optimization algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (( pulse estimation algorithms ) or ( attributes optimization algorithms ))*.