Perhaps you should try some spelling variations:
routledge telecommunications » mobile telecommunications, rural telecommunications, mobile telecommunication
"Routledge telecommunications sector." » "Routledge telecommunications services."
"routledge communication series." » "routledge communication services.", "routledge communication systems.", "routledge communication skills."

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"routledge communication series.\") OR (\"Routledge telecommunications sector.\"))~".
• Removing quotes may allow a broader search: (( routledge communication series. ) OR ( Routledge telecommunications sector. ))~.
• Adding a wildcard symbol may retrieve word variants: (("routledge communication series.") OR ("Routledge telecommunications sector."))*.