Regular expression can not use for Query Options in Variables?

Hello Friend,
I try to use a Regex in Query Options in the “Query” form. for example:

There are several Applications’ name begin with PostgreSQL.
We can use “.$host.PostgreSQL Server.” to find the items inside “PostgreSQL Server”
However, if I try to use “.$host.PostgreSQL.*” It find nothing.
How can I find all applicaitons’ name with PostgreSQL prefix with regex? Thanks in advance