Searching in such an extensive collection as TU Delft Library’s can produce a large number of results. Of course, you are not really looking for so many, but would probably prefer a smaller selection. As we understand that it is not always possible to think of the precise search term you need, has built-in filters.

In the coming period, we plan to provide answers to a number of frequently asked questions about the subject, in order to make it even easier to search our collection.

In this post, we look at simple manual and automatic filters. More advanced filters will be covered in a later post.

Whenever you want to search in our collection, you automatically use our search engine Discover (

Of course, you can simply enter a search term and apply a afterwards, but it is also possible to refine your search in advance, by document type, publication period or collection.

For example, if you are looking for a specific publication from the TU Delft , you should click on ‘Catalogue’ under Collection.

Aside from the clickable filters, you can also create manual filters. For example, if you are searching for publications available online, you should add the words “online resource” (including the quotation marks) to your search. Manual filters can therefore be used for a range of advanced search queries. More information will be included in a later post.

Example of this search query

As stated earlier, it is also possible to filter and/or sort your search results retrospectively.

As standard, the results are sorted by relevance. If you want to change this and sort them by year, simply click on the line ‘Sort by Year’.

In the left-hand menu, you will then find the various other filter options, including filtering by subject, top 10 authors and document type.

Hopefully, these tips will provide the help you need to improve your search.

If you would like more information about advanced filters, keep an eye on this blog or follow us on Twitter. We will tell you more about setting advanced filters soon.

Discover instruction video

Want to know more about how to use Discover?
Check out our latest instruction video on TUlib!