I have no idea how to find my childhood friend?

Me and my childhood friend went to the same primary school until i moved away during the 3rd grade(2004). I remember was that i was very close to her, but i forgot her last name all i remember was rosalinda florencia, i went to her house once, i knew her family but i dont remember anything about them, being only about 6 years old and 8 when i moved away. So its been about 7 years since i met her. I tried searching her name at least on facebook but theres just too much rosalindas, and when i search rosalinda florencia only a few names come up and it doesnt seem to be her. Im not even sure whether she actually has a facebook and as you know many people on facebook like to use cover up names or stuff like that. I also have no idea whether she still lives in the same place(i dont even remember where) or if she's still in the country. So as you can see im doing a blind, very very blind search for 1 person... I just cant forget about her... Ive done some very lengthy searches, even going to my old school to find information on her but they dont keep her records anymore. So i would like some advice or help with this