Writing  agua AND abastecimiento in the "Text to find :" field, is possible to find all the authorities that contain both words.

LEMB Digital has a queries software with a powerful search engine that allows to make the following actions:

• Text search over the authorities, in pure text or MARC version.
• Search on the total content, over the authorities titles, over the description of the authority in English and over the specific MARC TAGS.
• Use of Boolean operators such as AND, OR and NOT.
• Search using the metacharacters asterisk (*) to search any text (i.e. art*) and question mark (?) to search for letters (i.e. Art?).

Note: LEMB Digital highlights the hits of the consulted strings, within all the authorities which satisfy the query.