Perhaps you should try some spelling variations:
information source » information sources, information resource, information resources
digital transition » digital transformation, political transition
transition lines » transition les, transition zones, transmission lines
cge information » age information, care information, core information
global cge » global case, global care, global code

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: (( global cge information source ) OR ( a digital transition lines ))~.
• Adding a wildcard symbol may retrieve word variants: (( global cge information source ) or ( a digital transition lines ))*.