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Using this function within Cohort Builder, Catalogues, Data Export etc will look for items specifically there unless specified to search elsewhere, this can be done by selecting the different icons along the top of the 'Find' pop up box shown below 
By selecting, 1. 2 or all of the icons will change the search area.
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Find can also be used by typing the letter of the search name followed by what you are looking for: ie cic test will bring up all items in cohort identification config called test.
This is the list of filters with their corresponding letter:
Catalogue (c)
Catalogue Item (ci)
Supporting Document (sd)
Project (p)
Extraction Configuration (ec)
Extractable Cohort (co)
Cohort Identification Config (cic)
Table Info (t)
Column Info (col)
Load Metadata (lmd)