If I put read topic permission to no and search permission to yes.

The user should be able to see the forum and see the topic list, and for that matter all working good. Then the user should not be able to click on the topic list, all good.

But if the user tries to search for a topic that is inside that special forum with those kind of permissions it will not appear on the search. It should appear since the search permission is yes. But it should behave as the topic list, without url to the topic.