Perhaps you should try some spelling variations:
"sobre literatura mexican / catedra jaime torres jose" » "sobre literatura mexicana / catedra jaime torres jose", "sobre literatura americana / catedra jaime torres jose", "sobre literature american / catedra jaime torres jose", "de literatura mexican / catedra jaime torres jose", "e literatura mexican / catedra jaime torres jose", "lehre literatur mexican / catedra jaime torres jose"
"entre literatura mexican / catedra jaime torres jose" » "entre literatura mexicana / catedra jaime torres jose", "entre literatura americana / catedra jaime torres jose", "entre literature american / catedra jaime torres jose", "weitere literatur mexican / catedra jaime torres jose", "neuere literatur mexican / catedra jaime torres jose", "de literatura mexican / catedra jaime torres jose"

Try widening your search to All Fields.

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"sobre literatura mexican / catedra jaime torres jose\") OR (\"entre literatura mexican / catedra jaime torres jose\"))".
• Removing quotes may allow a broader search: (( sobre literatura mexican / catedra jaime torres jose ) OR ( entre literatura mexican / catedra jaime torres jose )).
• Adding a wildcard symbol may retrieve word variants: (("sobre literatura mexican / catedra jaime torres jose") OR ("entre literatura mexican / catedra jaime torres jose"))*.