Catalogue of studies, questions and series

The search engine uses Lucene syntax to interpret search strings ( see official documentation) ).

To be able to use this syntax, you must indicate in the search text box that you want to perform an advanced search by placing the symbol * at the beginning of the search ( see examples below ).

Attention! When using advanced search:

• The search engine may not return results if the syntax entered is not correct.

• Relevance sorting is different from simple search so the order of results may vary.

• Matches found in the texts are not highlighted

Fields to search

Here you can view the fields in which the information is stored:

Field name	Indexing mode	Observations
code	keyword	Study/question/series code
title_en_US	text	Title of the study/question/series
description_en_US	text	Description of the study/series
publishDate	text	Study/question publication date. In series, this is the last date the question was asked.
questionCodes	keyword	Code of the questions that are part of a study
questions_en_US	text	Statements of study questions
descriptors_es_ES	text	Descriptive texts of the questions
serieCodes	keyword	Code for series containing questions that are part of a study
collections_es_ES	text	Name of the study collections
publications_es_ES	text	Name of the study publications
subjectIndexes_es_ES	text	Thematic indexes of the study
orders_es_ES	text	Name of those who commissioned the study
authors_es_ES	text	Name of the study authors

^* Currently, catalog data is only available in Spanish (Castilian), represented by the international ISO 3166 standard as "es_ES".

Examples

• Get all content containing the term barometer but not January:
  * barometer - January

• Get all content that does not contain the term barometer but does contain the term "inequality" in that order:
  * -barometer +inequality

• Get all content containing the terms "election" and "Catalonia" but not "2022"
  * title_es_ES:(+elections +catalonia -2022)

• Get only content that has barometers and 2024 in the title:
  * title_es_ES:(+barometer +2024)

• Obtain only content that includes barometers and 2024 in the title but does not contain the word "health":
  * title_es_ES:(+barometer +2024 -health)

• Get all content containing the term migration in any field:
  * \*:(*migration)

• Get all the content that has asked questions about divorce
  * questions_en_US:(divorce)

• Change the weight of a term to change the relevance of the listing
  * consumer loyalty^2 in Spain