Global search block is not perfect, but the block will take very important role in the near future.
I'm beliving it now!
I had modifyed and improved Global search in two days.
I had reported only three ponts in tracker including this issue.
(Shirai135): The multibyte strings in index files will be broken (2009/05/28)
(Shirai136): When the course module does not exist in mdl_course_modules, SQL syntax error will occur (2009/05/29)
(Shirai137): User pictures are not displayed in results of blogs (2009/05/29)
(Shirai138): Change Title from Author to Posted title when the search result is blog (2009/05/29)
(Shirai139): Change link address from blog entry to posted blog when the search result is blog (2009/05/29)
(Shirai140): The course name is not displayed when the search result is wiki (2009/05/29)
(Shirai141): Search option does not work (2009/05/29)
(Shirai142): Search keyword parameter(Multibyte character) is broken at direct link to the pages (2009/05/29)
(Shirai143): user_id is not returned (2009/05/29) c.f.(Shirai137)
(Shirai144): When input multibyte characters as search key, iconv library does not work and the search process halt by the error (2009/05/29)
(Shirai145): Adding path for external converter and modifying "exectuable" -> "executable" (2009/05/30)
(Debug004): 'UTF8' is not right encoding name (2009/05/29)
After modifying these problems, Global search on my moodle site is running fine.
I attached a zip file (includijng diff-file, original search folder and modified search forlder) named as 'Patches-GlobalSearch.zip'.
Please check and investigate and test these modifications.
P.S. Sorry, English is not my native language...hard to read for you...