The page that appears in that option (https://wiki.openoffice.org/wiki/Dictionaries) says "This page is obsolete", I propose to change this address for any of these two, which are updated and are free.
Apache OpenOffice: http://extensions.openoffice.org/en/search?f  = field_project_tags% 3A157
Personally, the option of libreoffice is the best
fixed in hg 4216 (c842e48b6b52). It is now also possible to import .oxt dictionary files.
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