Perhaps you should try some spelling variations:
routledge telecommunications » mobile telecommunications, rural telecommunications, mobile telecommunication
telecommunications networks » telecommunications sector, telecommunications reform, communication networks
communication system » communication systems, telecommunication system, telecommunication systems

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( routledge communication system. ) or ( routledge telecommunications networks. ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( routledge communication system. ) OR ( routledge telecommunications networks. )).
• Adding a wildcard symbol may retrieve word variants: (( routledge communication system. ) or ( routledge telecommunications networks. ))*.