Perhaps you should try some spelling variations:
optimization algorithms » optimisation algorithm, estimation algorithms, estimation algorithm
location optimization » allocation optimization, static optimization
modified location » modified carbon
mapping learning » machine learning, enabling learning
method algorithm » mom algorithm
learning method » learning methods, graining methods, learning emotion

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