The new Course Search plugin by Shashikant Vaishnav has been released in beta and feedback on the new tool is being requested. Course Search was one of the Google Summer of Code projects this summer (not to be confused with Global Search, an additional GSOC project underway for 2013). Shashikant has posted his code, updates and other relevant information in a Moodle forum and is asking for feedback as he continues to test and QA the tool.
Course Search is a,
plugin that makes course search more flexible, fast , case-insensitive and can sort results by relevance. The plugin also have the capability to search into course attachments (course overview files and summary files). It gives more powerful way of searching into courses via features like results caching, Sorting with different aspects, spelling correction (Did you mean?) feature, fuzzy search (alternate form of words).
For more information please refer to Shash’s post at Moodle.org: https://moodle.org/mod/forum/discuss.php?d=232803#p1038086