When many were struggling with the very same problem of double, triple,
ad-nauseum posts on the same question or topic, John Tullamarine, (
Tech Log), provided the following search tool.
..
Searching for ACARS af447 in "tech log":
ACARS af447 site:
http://www.pprune.org/tech-log/
I'm not sure what search tool you are referring to, but you can use that syntax on most search engines, for example on
Google or
DuckDuckGo. You can also combine that with the normal search operators like +, - etc.