Using Classic Outlook on Windows for personal email, calendar, and contact management
Hello Sourabh,
Based on my experience, it is not an error message, instead it should be a notification. Please click the More button to see if you can view all the search results. Please capture a screenshot.
If every research only has 1 results, please click **File->Options->**choose Search, uncheck Improve search speed by limiting the number of results shows. Click OK to save it.
If the issue persists, please let me know:
1 . The version number of your Outlook client.
2 . Does this issue occurs no matter what the content your search?
Regards,
Rick