Be careful when renaming SearchObjectUI items, as they're referenced in xxx_TabItrems.xml files, and unless you update all occurrences, the search will simply stop to work.

Special names

A SearchObjectUI named 'Search' is a system-required, and references within the main programming code, for various content selection dialogs.

Do not rename such SearchObjectUI - if you need to make changes, duplicate it with another name and then modify the duplicate.