How to download specific files from ftp?

I wonder about how to download files, not all into index of directory.

For example, my question is how to download specific files, which its name start "mat1", from 2015 to 2018 or index of 2018, between 001 and 067.

wget -r -nd -A 'mat1*' ftp://cddis.nasa.gov/gnss/products/troposphere/zpd/{2015...2018}.gz

or how to download mat1 files between 001 and 067 from 2015 index of directory?

I didn't know ftp code. As a first impression

ftp cddis.nasa.gov
Name (ftp.cddis.nasa.gov): anonymous
password:
ftp> cd gnssproducts/troposhere/zpd/
(Error: 550 Failed to change directory.)
prompt off
ftp> mget mat1*