Currently, it is not possible to exclude suppliers from the search, you can determine the supplier whose products you wish to check.
There are various options, however, to narrow down the search - such as setting a location filter, shipping type, language or a price range filter.
We are constantly working on developing the search engine for our Marketplace, however, and our developers are happy to receive new ideas to help make our application even better. :)
Should you have any questions or need any assistance, let us know via the in-app chat or e-mail at email@example.com.