Perhaps you should try some spelling variations:
routledge telecommunication » mobile telecommunication, contents telecommunication
"Routledge telecommunication systems." » "Routledge communication systems.", "Routledge telecommunication services."
"routledge communication skills." » "routledge communication services.", "routledge communication 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 skills.") OR ("Routledge telecommunication systems."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"routledge communication skills.\") OR (\"Routledge telecommunication systems.\"))".
• Removing quotes may allow a broader search: (( routledge communication skills. ) OR ( Routledge telecommunication systems. )).
• Adding a wildcard symbol may retrieve word variants: (("routledge communication skills.") OR ("Routledge telecommunication systems."))*.