Perhaps you should try some spelling variations:
"routledge telecommunications network." » "mobile telecommunications network.", "rural telecommunications network.", "mobile telecommunication network.", "routledge telecommunications networks.", "routledge telecommunications sector.", "routledge telecommunications reform."
"routledge communications costs." » "knowledge communication costs.", "mobile communications costs.", "online communications costs.", "routledge communication costs.", "routledge communication systems.", "routledge communication efforts."

Try widening your search to All Fields.

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

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