Thank you Tim

Very usefull modification!
It works fine for my Board, installed 3 weeks ago and it run without any trouble.
for your next version you should add the hint to change the search.php also. So that the descriptions also display in "New Posts" and other search results.
Tested in
3.50 without any trouble
Code:
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Open search.php
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+-----
+Find (twice!):
+-----
. iif($vbulletin->options['threadmarking'] AND $vbulletin->userinfo['userid'], ', threadread.readtime AS threadread') . "
+-------------
+Replace Both With:
+-------------
. iif($vbulletin->options['threadmarking'] AND $vbulletin->userinfo['userid'], ', threadread.readtime AS threadread') . ", threaddesc
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Save and Upload search.php
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