Perhaps you should try some spelling variations:
estimation algorithms » estimation algorithm, optimization algorithms, optimisation algorithm
mapping learning » machine learning, enabling learning
method algorithm » mom algorithm
learning method » learning methods, graining methods, learning emotion
game estimation » pose estimation, game optimization
modified game » modified male, modified adam

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