Search terms with punctuation returns no results even when there are matches

[vanitabarrett]

Grouping together a set of related issues with punctuation and matching:

• [ ] https://github.com/alphagov/govuk-country-and-territory-autocomplete/issues/58
• [ ] https://github.com/alphagov/govuk-country-and-territory-autocomplete/issues/47
• [ ] https://github.com/alphagov/govuk-country-and-territory-autocomplete/issues/12
• [ ] https://github.com/alphagov/govuk-country-and-territory-autocomplete/issues/40