Well, you could use some basic techniques like mirroring her body position, her tone of voice, her energy (if she's a quiet girl, don't be too excentric, hope you get it, man, my English isn't very good hahaha).
NLP is all about improving the way you communicate, however I think that covert hypnosis techniques (patterns, etc.) are kinda worthless if she doesn't even understand your language.
So, mirror her and look her deeply in the eye (which is different from staring at her): our eyes are like "the mirrors of the soul", they are a magnificent rapport tool.
I had the same problem as you with a Brazilian girl (she could only understand Spanish and Portuguese). I only speak Italian, French, Dutch and English, bad luck. Just mirrored her, locked eye contact and found myself speaking (some language that sounded like) Spanish with her during the next three hours (got some make outs and she was so horny she asked me to f**k her...)
All the best
