Perhaps you should try some spelling variations:
optimisation algorithm » optimization algorithms, estimation algorithm, estimation algorithms
network optimisation » network optimization
solution algorithm » evolution algorithm, convolution algorithms, evolutionary algorithm
modified drug » modified df, modified orca
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: (( certified network optimisation algorithm ) OR ( modified drug solution algorithm ))~.
• Adding a wildcard symbol may retrieve word variants: (( certified network optimisation algorithm ) or ( modified drug solution algorithm ))*.