Microsoft Outlook 2010 provides a feature to search calendar items from its calendar quick search box. It remains on the top right of the calendar screen. When you type something the quick search calendar box, you experience that Calendar Quick search not working in Outlook 2010. You may also get the message "No matches found for...". After that, you receive hyperlinked message saying "Try searching again in All Calendar Items".
When you click on the hyperlinked message, you still couldn't find the result. However, if you try to do a long search using "Ctrl+Shift+F" key combinations, you get better search results. Sometime the search even fails to find words that are actually displayed on the calendar in the current view. This is one of the major problem with Outlook 2010 calendar. In order to fix calendar quick search not working issue in Outlook 2010, you need to reindex folders.
The problem 'calendar quick search not working in Outlook 2010' generally occurs due to corruption or damages in your outlook pst file. If reindex doesn't work at all then you will need to repair the pst file first then you will need to reindex. MS Outlook has inbuilt utility Inbox Repair tool (Scanpst.exe) that repairs normally corrupted pst files. Follow the followings steps to repair the pst file using Inbox Repair tool:
Once you have successfully repaired. Start your Outlook and try to re-index the search options again. In case, you have problem in pst repair then you can use reliable PST Repair Tool. The tool easily and successfully repairs any corrupted outlook pst file. It also recovers lost/missing or deleted outlook data like emails, notes, calendars etc.