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.