"wales office" wasn't returning the Wales Office org page

The Wales Office organisation page[0] should be returned for "wales office".

Because of the synonyms, the query "wales office" was expanded to "wales cymru cymraeg gymraeg office".
With this number of terms, the minimum should match filter requires at least 3
terms to be in the document, but the org page only has "wales" and "office", so was
excluded from the results.

  * 0 - https://www.gov.uk/government/organisations/wales-office