Perhaps you should try some spelling variations:
optimisation algorithm » optimization algorithms, estimation algorithm, estimation algorithms
network optimisation » network optimization
method algorithm » mom algorithm
active learning » machine learning
learning method » learning methods, graining methods, learning emotion
certified » verified

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: (( active learning method algorithm ) OR ( certified network optimisation algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (( active learning method algorithm ) or ( certified network optimisation algorithm ))*.