Perhaps you should try some spelling variations:
ingenieria administracion » general administracion, financieras administracion, industrial administracion
textual administrativa » gestion administrativa, tecnico administrativa
330 economia » la economia, de economia, y economia
economia en » economica en, economia del, economia de
en derecho » al derecho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((textual administrativa) or (ingenieria administracion)) 330 economia en derecho~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((textual administrativa) OR (ingenieria administracion)) 330 economia en derecho.
• Adding a wildcard symbol may retrieve word variants: ((textual administrativa) or (ingenieria administracion)) 330 economia en derecho*.