Cue-word search

I haven’t yet installed the Kaltura Community Edition and then created my own video portal. But anyway, your reply partly answers my needs. An extension to my question is as follows.
If I already have two videos (.mp4), each with its own captions (.en.srt), what if the search word is, say “3c” and that word occurs twice in the first video and twice in the second video. How can a user find all four occurrences?