Perhaps you should try some spelling variations:
opto-reine-laryngology » otto-reine-laryngology, opt-reine-laryngology, opto-reiner-laryngology, opto-seine-laryngology, opto-reihe-laryngology, opto-reine-otolaryngology
onto-reine-laryngology » onto-reiner-laryngology, onto-seine-laryngology, onto-reihe-laryngology, onto-reine-otolaryngology, otto-reine-laryngology, unto-reine-laryngology, ont-reine-laryngology

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-reine-laryngology OR onto-reine-laryngology ).
• Adding a wildcard symbol may retrieve word variants: (advances or advanced) in (opto-reine-laryngology or onto-reine-laryngology )*.