The documentation comment for the [wikipedia-ios-app-store-keywords](https://github.com/wikimedia/wikipedia-ios/blob/16cfc88dce189dd7bd4c8c67966ec1282369bab1/WMF%20Framework/CommonStrings.swift#L145) message seems to insist that each keyword be a single word without spaces. This is a problem for Vietnamese, because there’s literally no way to say much of anything about the Wikipedia application without using a compound word. For example, “encyclopedia” would be “bách khoa toàn thư”, “info” would be “thông tin”, “research” would be “nghiên cứu”, and so on.

I’m unable to find any evidence of a requirement for single-word keywords in Fastlane or the App Store. This Fastlane documentation doesn’t describe any restrictions around the keywords.txt format. One would assume it goes verbatim into the iTunes Connect keywords field. All I could find is an old issue that apparently affects only a preview page.

Meanwhile, iTunes Connect says:

Include one or more keywords that describe your app. Keywords make App Store search results more accurate. Separate keywords with an English comma, Chinese comma, or a mix of both.

T194688#4241520 suggests that the intention was only to keep translators from translating the entire list as a phrase or sentence, but not to keep each keyword in the list from containing a phrase if necessary.

Related PR: https://github.com/wikimedia/wikipedia-ios/pull/2376