I assume you're asking about the Roman Catholic church.
The extent to which that church is interested in the truth depends on the topic and the particular member of the church. I'm confident that the "official" line is that the church as an institution cares about truth.
On the other hand, there are a lot of problematic things in the bible that are accepted by the church (as an institution) as true, despite a lack of confirming evidence or, in some cases, the presence of disconfirming evidence.
On questions relating to science, for the most part, these days, the official line from the catholic church seems to be that those parts of the bible that demonstrably conflict with modern science can safely be read as allegories or parables, or whatever, rather than as declarations of truths.
A lot of positions officially held by the Catholic church and considered important to doctrine concern moral issues rather than issues of fact. The church does not necessarily require good reasons to dictate that certain things are right or wrong. I think they would say that the bible itself provides sufficient justification for such claims.
Only officially since 1992, if I recall correctly.