How to search in a document using phrase instead of separate concepts

How to set up in SearchAI to search for concepts (phrase) instead of individual words. For example, if asking search AI for “term1 term2”, we expect SearchAI returns documents containing exactly the “term1 term2” phrase like a unique concept, instead of documents containing “term1” or/and “term2” like separately concepts.

That is because we have identify that when you pass a concept to look for in that contains an specific concept, for example “personal work”…Search AI is working like separating this concept in two “personal” and “work” and searchs for this 2 concepts separatly, giving us any document that contain some of this concepts…instead of only these ones with only the exact “personal work” concept.

Looking forward about some feedback.
Thanks in adavance.