When searching, text is not highlighted if you search for multiple words that appeared consecutively in the same order in the document

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.0.2 CE GA3, 7.0.0 DXP SP2, 7.0.0 DXP FP13, 7.0.X EE
• Fix Version/s: 7.0.0 DXP FP17, 7.0.3 CE GA4, 7.0.0 DXP SP4, 7.0.X EE, Master
• Component/s: Portal Services > Portal Utilities, Search Infrastructure
• Labels:
  • backend_test
  • ee-ts
  • liferay-digital-enterprise-70-sp4
  • liferay-fixpack-de-17-7010
• Branch Version/s:
  7.0.x
• Backported to Branch:
  Committed
• Story Points: 1
• Fix Priority: 3
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/48946

Description
In some cases, search results aren't highlighted correctly. Specifically, if you search for a multi-word phrase that occurs exactly as written in the search results, then nothing will get highlighted. This is true even if you enclose some or all of the words in quotes.

Steps to reproduce

1. Start up Liferay and log in as the admin user
2. Add Document and Media portlet to the homepage
3. Add the attached document (Document3.txt) to the portlet
4. Search for Japanese English in the search portlet
5. Verify that Document3.txt appears in the search results, with the words "English" and "Japanese" highlighted
6. Now try searching for English Japanese in the search portlet

Expected result: As before, Document3.txt appears in the search results, with the words "English" and "Japanese" highlighted
Actual result: Document3.txt appears in the search results, but none of the words are highlighted.

Reproduced in
master (47641e8f3ec75926046d935f41cd3881a5053b2e)
ee-7.0.x (bfbd424d8c9b0069cc9d426d968aa80f12959cb1)