Perhaps you should try some spelling variations:
principios ordenadores » principios orientadores (Expand Search), principios rectores (Expand Search), principios limitadores (Expand Search)
principios reguladores » principios orientadores (Expand Search), principios rectores (Expand Search)
hacienda general » hacienda foral (Expand Search), cuenta general (Expand Search), hacienda real (Expand Search)
de pais » del pais (Expand Search), de paris (Expand Search), de paix (Expand Search)

Try widening your search to All Fields.

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

• Removing quotes may allow a broader search: ((principios ordenadores) OR (principios reguladores)) de la hacienda general de pais vasco :.