Perhaps you should try some spelling variations:
routledge telecommunications » house telecommunications, mobile telecommunications, future telecommunications
"Routledge telecommunications service." » "Routledge telecommunications services.", "Routledge telecommunication services.", "Routledge telecommunications provider."
"routledge communication systems." » "routledge communication system."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("Routledge telecommunications service.") or ("routledge communication systems."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("Routledge telecommunications service.") OR ("routledge communication systems."))*.
• Removing quotes may allow a broader search: (( Routledge telecommunications service. ) or ( routledge communication systems. ))*.