Infiltrator

Hello. I am using a google font that has characters for my country (east europe). But when I use it on the site, it looks very bad. Instead of explaining I'll just link you the picture: http://i.imgur.com/VL2yzbE.jpg I highlighted some of the problems. Different font size, no anti-aliasing, even a completely other font in the title when there's a east euro character in there are all issues that I have. What should I do? I tried changing different fonts that all have support for my characters, but none worked. Thanks