I have the same issue. Yes you do have most of the Google Fonts with your theme, but not the font I want which is a different language. The font is called Abhaya Libre (See link below). I need to use this font as I am building the site in the language called Sinhala. The theme I am using is makeup-pro which I bought with the complete collection.
I tried installing the font to the wp-content/uploads/ abd giving the path in a custom CSS area… However it seems to be over ridden by the theme settings, which doesn’t list this font for me to change the body text.
Your help is much appreciated.