Collective search help

Can anyone please explain COLLECTIVE SEARCH HELP with an example????

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[Asking Good Questions in the Forums to get Good Answers|/people/rob.burbank/blog/2010/05/12/asking-good-questions-in-the-forums-to-get-good-answers]

[The Grinch who stole the Questions|http://www.sdn.sap.com/irj/scn/weblogs?blog=/pub/wlg/17267] [original link is broken] [original link is broken] [original link is broken];

Edited by: Thomas Zloch on Dec 21, 2010 2:16 PM