Perhaps you should try some spelling variations:
"entornos visuales en." » "entornos virtuales en.", "entornos digitales en.", "estudios visuales en.", "entornos visual en."
"entorno virtuales oecc." » "entornos virtuales oecc.", "entorno virtual oecc.", "entorn virtual oecc.", "entorno virtuales de.", "entorno virtuales tic.", "entorno virtuales del."
"entorno virtuales en." » "entornos virtuales en.", "entorno virtual en.", "entorn virtual en.", "entorno virtuales de."

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: (("entorno virtuales oecc.") or ((("entorno virtuales en.") OR ("entornos visuales en."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("entorno virtuales oecc.") OR ((("entorno virtuales en.") OR ("entornos visuales en.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"entorno virtuales oecc.\") or (((\"entorno virtuales en.\") OR (\"entornos visuales en.\"))))".
• Removing quotes may allow a broader search: (( entorno virtuales oecc. ) or ((( entorno virtuales en. ) OR ( entornos visuales en. )))).
• Adding a wildcard symbol may retrieve word variants: (("entorno virtuales oecc.") or ((("entorno virtuales en.") OR ("entornos visuales en."))))*.