http://www.mywatchmovie.com/ is my wordpress site. suppose if you type 'avtar' in search of my site, you did not seen the movie 'Avatar' in search result. means search is case sensitive. how can i solve this problem can anyone help me
Search is not case sensitive. Wordpress does not mind case sensitive searches. It finds whatever the case is. I checked it on ur site. The spelling mistake might have made the search not fruitful. If you need more info, PM me with the thread link and info.
You can try the Beta for Google Custom Search. http://www.google.com/cse/ I'm seeing this well integrated on a number of WordPress Sites. fourblogger dot com is using it and has done a nice job of integration and shows you how he did it with the Thesis Theme.
google beta is probably a good idea... but wouldn't there be a plugin for wordpress that would allow for this? i'm not sure how it would go for speed but yea...
I also had some problems with the wordpress search.. the results are not relevant and the template is also a bit messed up!