When conducting a search in Responza, we recommend you use as few and specific words as possible. This way, you get more precise search results.
You can however search with as many words as you like.

In practice, the difference is

• When you search with up to 3 words, at least 1 of the words must be found for there to be a match, i.e. a search result
• When you search with more than 3 words, at least 2 words must be found for there to be a match