DOAJ (Directory of Open Access Journals) is a database covering more than 10000 open access journals covering all areas of science, technology, medicine, social science and humanities (Wikipedia).
To fetch entries from DOAJ, choose Search → Web search, and the search interface will appear in the side pane. Select DOAJ in the dropdown menu. To start a search, enter the words of your query, and press Enter or the Fetch button.
The results are displayed in the import inspection window. In case an error occurs, it is shown in a popup.
It is possible to limit the search by adding a field name to the search, as field:text. The supported fields area:
title: The title of the article
doi: The DOI of the article
issn: The ISSN of the journal
publisher: The publisher of the journal
abstract: The abstract of the article