Perhaps you should try some spelling variations:
optimization algorithm » optimization algorithms, optimisation algorithm, estimation algorithm
location optimization » allocation optimization, static optimization
estimation algorithms » estimation algorithm, optimization algorithms, optimisation algorithm
modified location » modified carbon
risk estimation » pose estimation
modified risk » modified bi1

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 location optimization algorithm ) OR ( modified risk estimation algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (( modified location optimization algorithm ) or ( modified risk estimation algorithms ))*.