Perhaps you should try some spelling variations:
opto-rhino-laryngology" » otto-rhino-laryngology", opt-rhino-laryngology", opto-reino-laryngology"
onto-rhine-otolaryngology" » otto-rhine-otolaryngology", unto-rhine-otolaryngology", ont-rhine-otolaryngology", onto-chine-otolaryngology"

Try widening your search to All Fields.

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

• If you are trying to use Boolean operators, they must be ALL CAPS: "(advances OR advanced) in (opto-rhino-laryngology" or onto-rhine-otolaryngology").
• Removing quotes may allow a broader search: (advances or advanced) in (opto-rhino-laryngology or onto-rhine-otolaryngology ).
• Adding a wildcard symbol may retrieve word variants: "(advances or advanced) in (opto-rhino-laryngology" or onto-rhine-otolaryngology")*.