Hi.
There is a problem with "Search in files" when searching text in non-latin charsets and current locale charset is different from charset of files in the project. For example, charset of files is cp1251 and current locale is utf8.
May be we can introduce new option "charset" in Project options and so we should be able to recode files while performing a search?
May be there is an another solution for the problem, but now the problem seems to be unsolvable and we are forced to use external tools for that task (such as Midnight commander, for instance ;).