Search not working with Greek characters

[nasos]

he block search function is working with English characters but with Greek characters i get no results. As i can see in a query like this " πατακια " the url should be
http://www.autopower.gr/%CE%91%CE%BD%CE%B1%CE%B6%CE%AE%CF%84%CE%B7%CF%83%CE%B7-%CF%80%CF%81%CE%BF%CE%B9%CF%8C%CE%BD%CF%84%CE%BF%CF%82?controller=search&orderby=position&orderway=desc&search_query=%CF%80%CE%B1%CF%84%CE%B1%CE%BA%CE%B9%CE%B1&submit_search=

instead of this i get  
http://www.autopower.gr/%CE%91%CE%BD%CE%B1%CE%B6%CE%AE%CF%84%CE%B7%CF%83%CE%B7-%CF%80%CF%81%CE%BF%CE%B9%CF%8C%CE%BD%CF%84%CE%BF%CF%82?orderby=position&orderway=desc

and no results

It works ok Locally with Xampp

[shacker]

ok, when you change the language to greek, search the workds in english or greek?

[nasos]

I only use Greek language in my shop. Search works only for English. When i write Greek there is no query in url and no products found.

As you can see in the above url, Search function is not getting the query in url when using Greek language.

Edited June 15, 2015 by nasos (see edit history)

[shacker]

try this, add another language, reindex the entire search index, and check if search in the new lang. If yes, remove greek and install it again, and redo rebuild search