Perhaps you should try some spelling variations:
approximations algorithms » approximation algorithms, approximation algorithm
solutions algorithms » solution algorithm, evolution algorithm, convolution algorithms
rough approximations » one approximation
global solutions » global evolution, model solutions, nodal solution

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 global solutions algorithms ) OR ( modified rough approximations algorithms ))~.
• Adding a wildcard symbol may retrieve word variants: (( modified global solutions algorithms ) or ( modified rough approximations algorithms ))*.