Search within recently opened resources

Is there anyway to search within the last specified opened resources?

For example: I was reading something on Jack Deere and his association with the Kansas City Prophets but I can't recall the actual book that it was found in.

However, in the mean time I opened up numerous other resources that had nothing to do with Deere, but I do know that the articles about Deere were opened within the last 7 days.

Is there a way to search only those resources that were opened within the last seven days or does the search populate everything that has a reference to Deere and the KCP?

mm.