Search difference between Search Folders and search on OWA

Question

Sometimes when I Search the Inbox folder on OWA, the search will not return all the emails with a subject line value.  However, I also have a Search Folder set up to look for the same subject line value and it does return all the emails. 
After a few days it usually fixes itself.   
What is the difference between the search using OWA and the search using a Search Folder? 
For the OWA search I specify to only search the Inbox and to only search the Subject line.  

Answer 1

Hi,
Yes, there are some different results when searching items in OWA and Outlook Cached mode.
When users are using Outlook Cached mode, Outlook uses
Windows Search, a component built-in in Windows 7 and Windows Vista. Windows Search performs content indexing and provides search functionality to Outlook. Interfacing with a local content indexing and search service provides Outlook users running
in Cached Exchange Mode a more efficient way to search their mailbox. For details about Windows Search, see
Windows Search.
When using OWA, the Exchange Search is used. Generally, Search results are limited to the first 100 matches found in OWA. For more information about Exchange search, we can refer to Exchange Search Client part in :
http://technet.microsoft.com/en-us/library/bb232132(v=exchg.141).aspx#ESC
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Winnie Liang
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