Solution : https://service.sap.com/sap/support/notes/745629 (SAP Service marketplace login required)
Key words :
choose 'content administration' -> 'portal content' -> 'portal users' -> 'standard portal users' -> 'standard framework page'2, property 'enable km advanced search', 'default framework page', symptom portal header search, terms portal header search, 0 sp2 patch 4 hotfix 6 cmcoll, 0 cmcoll sp 2 patch 4 hotfix 1, additional link 'advanced search', portal header search, choose 'open' -> 'object'
Related Notes :
| 739526 | EP 6.0 SP2 Patch 4 Hotfixes |