support foreign characters!

Please ad a foreign character support!

For example: When I import a list of products from a *.txt file, some products contains the following characters: ÍíéÉáÁőŐúÚöÖüÜóÓűŰáÁÄ

When your program try to search for example the following: "Fehér iPad 16 GB"
It simple couldn't find anything because the letter "é" in your program is a square symbol!
Please help, this is very, very important to us!