When you create an article as Share content from an existing article, that article doesn't have its own content--it inherits the content from the original article. By default, these shared content articles aren't shown in search, to prevent duplicate titles or noisy results.
If you'd like to include these articles in search:
- Go to KB settings > Search and synonyms. The Search and synonyms page opens to the General settings tab.
- In the Reader controls section, under Shared content articles, uncheck the box to Prevent articles that inherit their content from another article from being searched.
- Be sure to Save your changes.