Perhaps you should try some spelling variations:
"entornos visuales el." » "entornos virtuales el.", "entornos digitales el.", "estudios visuales el.", "entornos visuales del.", "entornos visuales en.", "entornos visuales y."
"entornos visuales rol." » "entornos virtuales rol.", "entornos digitales rol.", "estudios visuales rol.", "entornos visuales del.", "entornos visuales lom.", "entornos visuales los."
"entorno digital de." » "entorno digitalia de."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("entorno digital de.") or ((("entornos visuales el.") OR ("entornos visuales rol."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("entorno digital de.") OR ((("entornos visuales el.") OR ("entornos visuales rol."))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"entorno digital de.\") or (((\"entornos visuales el.\") OR (\"entornos visuales rol.\"))))*".
• Removing quotes may allow a broader search: (( entorno digital de. ) or ((( entornos visuales el. ) OR ( entornos visuales rol. ))))*.