I have found that Google advanced search works better than YT's search.
Type in either the keywords you are looking for on the top line or the exact phrase you are looking for on the second line. (Either/or - not both)
Then scroll down to where it says site or domain and type in www.yesterdaystractors.com
Then scroll down and click advanced search.
It seems to work better to use www.yesterdaystractors.com and not www.ytmag.com Try it.