Perhaps you should try some spelling variations:
"mobile telecommunication services." » "mobile telecommunications services.", "mobile communication services.", "mobile communications services.", "rural telecommunications services."
"mobile telecommunications access." » "mobile communications access.", "house telecommunications access.", "mobile communication access.", "mobile telecommunications markets.", "mobile telecommunications sectors.", "mobile telecommunications sector.", "mobile communicationss access.", "rural telecommunicationss access."

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

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