Perhaps you should try some spelling variations:
"artech house mobile communication service." » "artech house mobile communication services.", "artech house mobile communications services.", "artech house mobile telecommunication services.", "artech does mobile communication service.", "artech more mobile communication service."
"artech house mobile communication systems." » "artech does mobile communication systems.", "artech more mobile communication systems.", "artech house mobile communication system."

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: (("artech house mobile communication service.") or ("artech house mobile communication systems."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("artech house mobile communication service.") OR ("artech house mobile communication systems.")).
• Removing quotes may allow a broader search: (( artech house mobile communication service. ) or ( artech house mobile communication systems. )).
• Adding a wildcard symbol may retrieve word variants: (("artech house mobile communication service.") or ("artech house mobile communication systems."))*.