Thank you so much for using our theme. We think you are using our free version of theme. On free theme, there is no any options for google fonts. But our premium theme AcmeBlogPro have more than 100 google fonts included. You can go for the premium plan of this theme. Besides this we have a lots of additional features like lots of color options, header section options, different layout on featured section, footer section options, single page options, related posts options, breadcrumb options etc.
If you need additional google fonts on premium theme, you can request for it. We will add that fonts and provide you the updated version of it.
Please check the theme details: http://www.acmethemes.com/themes/acmeblogpro/
Check theme demo: http://www.acmethemes.com/demo/?theme=acmeblogpro
If you have further more query, please feel free to ask.