Search All Sentences - does not say in which collection a sentence is found

In the list of sentences returned after a search, I cannot find anything that says which collection a sentence belongs to.

My use case is this: I am looking for all occurrences of a word in the current sentence, to see whether this is the only occurrence, in which case I really have to commit this occurrence to memory right now. If, on the other hand, I find that there are plenty more, I should be able to rely on the word recurring later. But that logic does not help me if the other occurrences are in some collection that I never play (I might be limiting myself to the FFT, for example).