Search is not working in arabic

[Migrated From Jforum.net]

Hello

I cannot search with arabic keywords , and it's working with english keywords...I'm using MySql.
the error is:
***************************
An error has occurred.
For detailed error information, please see the HTML source code, and contact the forum Administrator.
org.apache.lucene.queryParser.ParseException: Cannot parse '': Encountered "EOF" at line 1, column 0.
Was expecting one of:
NOT ...
"+" ...
"-" ...
"(" ...
"*" ...
QUOTED ...
TERM ...
PREFIXTERM ...
WILDTERM ...
"[" ...
"{" ...
NUMBER ...
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any idea abut this problem?

[originally posted on jforum.net by Silver33]