Perhaps you should try some spelling variations:
"routledge telecommunications services." » "routledge communication services.", "house telecommunications services.", "mobile telecommunications services.", "routledge communications services.", "contents telecommunications services."
"routledge telecommunication systems." » "routledge communication systems.", "mobile telecommunication systems.", "contents telecommunication systems.", "routledge telecommunication services."

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: (("routledge telecommunications services.") OR ("routledge telecommunication systems."))~.
• Removing quotes may allow a broader search: (( routledge telecommunications services. ) or ( routledge telecommunication systems. ))~.
• Adding a wildcard symbol may retrieve word variants: (("routledge telecommunications services.") or ("routledge telecommunication systems."))*.