Perhaps you should try some spelling variations:
"routledge telecommunication systemss." » "mobile telecommunication systemss.", "contents telecommunication systemss.", "routledge telecommunication systems.", "routledge telecommunication system.", "routledge telecommunications systems.", "routledge telecommunication systemsss.", "routledge teletelecommunication systemss.", "routledge telecommunication seriesss."
"routledge communication system." » "routledge communication systems.", "routledge telecommunication system.", "routledge communication series."

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

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